Jump to content

Rabies: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
Fixed typo
Tags: canned edit summary Mobile edit Mobile web edit
per MOS:CIRCA
Tags: Visual edit Mobile edit Mobile web edit Advanced mobile edit
 
Line 1: Line 1:
{{Short description|Deadly viral disease, transmitted through animals}}
{{other uses}}
{{About|rabies in humans|rabies in other animals|Rabies in animals|other uses|Rabies (disambiguation)}}
{{Infobox medical condition
{{redirect|Rabid}}
| Name = Rabies| Image = Dog with rabies.jpg
{{pp-semi-indef}}
| Caption = A dog with rabies in the paralytic (post-furious) stage
{{cs1 config|name-list-style=vanc}}
| Field = [[Infectious disease (medical specialty)|Infectious disease]]
{{Use dmy dates|date=March 2019}}
| DiseasesDB = 11148
{{Infobox medical condition (new)
| ICD10 = {{ICD10|A|82||a|82}}
| name = Rabies
| ID9 = {{ICD9|071}}
| image = Manwithrabies4.png
| ICDO =
| alt = A man suffering from rabies tied to a hospital bed.
| OMIM =
| caption = A man with rabies, 1958
| MedlinePlus = 001334
| field = [[Infectious disease (medical specialty)|Infectious disease]]
| eMedicineSubj = med
| symptoms = [[Fever]], extreme aversion to water, [[confusion]], [[Hypersalivation|excessive salivary secretion]], [[hallucination]]s, [[Insomnia|disrupted sleep]], [[paralysis]], [[coma]],<ref name=WHO2013/><ref>{{cite web |title=Rabies – Symptoms and causes |url=https://www.mayoclinic.org/diseases-conditions/rabies/symptoms-causes/syc-20351821 |website=Mayo Clinic |access-date=9 April 2018}}</ref> hyperactivity, [[headache]], [[nausea]], [[vomiting]], [[anxiety]]<ref>{{cite web |title=Rabies |url=https://www.mayoclinic.org/diseases-conditions/rabies/symptoms-causes/syc-20351821#:~:text=Rabies%20is%20a%20deadly%20virus,%2C%20foxes%2C%20raccoons%20and%20skunks. |website=Mayo Clinic |access-date=5 October 2023}}</ref>
| eMedicineTopic = 1374
| complications =
| eMedicine_mult = {{eMedicine2|eerg|493}} {{eMedicine2|ped|1974}}
| onset =
| MeshID = D011818
| duration =
|Orphanet=770
| causes = [[Rabies virus]], [[Australian bat lyssavirus]]<ref name=Au2014/>
| risks =
| diagnosis =
| differential =
| prevention = [[Rabies vaccine]], animal control, [[rabies immunoglobulin]]<ref name=WHO2013/>
| treatment = [[Supportive care]]
| medication = Incurable<ref>{{cite web|url= https://www.mayoclinic.org/diseases-conditions/rabies/diagnosis-treatment/drc-20351826#:~:text=Once%20a%20rabies%20infection%20is,the%20infection%20from%20taking%20hold. | title= Rabies diagnosis and treatment |date=27 June 2023|work=Mayo clinic}}</ref>
| prognosis = ~100% fatal after onset of symptoms<ref name=WHO2013/>
| frequency =
| deaths = 59,000 per year worldwide<ref name="CDC01">{{cite web |title=Rabies |url=https://www.cdc.gov/rabies/location/world/index.html |website=CDC |date=29 July 2020 |access-date=31 January 2021 }}</ref>
}}
}}
'''Rabies''' is a [[viral disease]] that causes acute [[encephalitis|inflammation of the brain]] in humans and other [[mammals]].<ref name=WHO2013/> Early symptoms can include fever and tingling at the site of exposure.<ref name=WHO2013/> These symptoms are followed by one or more of the following symptoms: violent movements, uncontrolled excitement, [[hydrophobia|fear of water]], an inability to move parts of the body, confusion, and [[loss of consciousness]].<ref name=WHO2013/> Once symptoms appear, the result is nearly always death.<ref name=WHO2013/> The time period between contracting the disease and the start of symptoms is usually one to three months; however, this time period can vary from less than one week to more than one year.<ref name=WHO2013/> The time is dependent on the distance the virus must travel to reach the [[central nervous system]].<ref name=Robbins>{{cite book |author=Cotran RS |title=Robbins and Cotran Pathologic Basis of Disease |edition=7th |publisher=Elsevier/Saunders |year=2005 |page=1375 |isbn=0-7216-0187-1|name-list-format=vanc|author2=Kumar V |author3=Fausto N }}</ref>
'''Rabies''' is a [[viral disease]] that causes [[encephalitis]] in humans and other [[mammals]].<ref name="WHO2013" /> It was historically referred to as '''hydrophobia''' ("fear of water") because its victims would panic when offered liquids to drink. Early symptoms can include fever and abnormal sensations at the site of exposure.<ref name="WHO2013" /> These symptoms are followed by one or more of the following symptoms: nausea, vomiting, violent movements, uncontrolled excitement, fear of water, an inability to move parts of the body, confusion, and [[loss of consciousness]].<ref name="WHO2013" /><ref>{{cite web |title=Rabies, Symptoms, Causes, Treatment |url=https://www.medicalnewstoday.com/articles/181980 |work=Medical News Today |date=15 November 2017}}</ref><ref>{{cite web |title=Rabies, Symptoms and causes |url=https://www.mayoclinic.org/diseases-conditions/rabies/symptoms-causes/syc-20351821 |work=Mayo Clinic}}</ref><ref>{{cite web |title=Animal bites and rabies |url=https://www.hopkinsmedicine.org/health/conditions-and-diseases/animal-bites-and-rabies |work=Johns Hopkins Medicine |date=27 February 2020}}</ref> Once symptoms appear, the result is virtually always death.<ref name="WHO2013" /> The time period between contracting the disease and the start of symptoms is usually one to three months but can vary from less than one week to more than one year.<ref name="WHO2013" /> The time depends on the distance the virus must travel along [[Peripheral nervous system|peripheral nerves]] to reach the [[central nervous system]].<ref name="Robbins">{{cite book |vauthors=Cotran RS, Kumar V, Fausto N |title=Robbins and Cotran Pathologic Basis of Disease |edition=7th |publisher=Elsevier/Saunders |year=2005 |page=1375 |isbn=978-0-7216-0187-8}}</ref>


Rabies is caused by [[lyssavirus]]es, including the [[rabies virus]] and [[Australian bat lyssavirus]].<ref name="Au2014">{{cite web |title=Rabies, Australian bat lyssavirus and other lyssaviruses |url=http://www.health.gov.au/internet/main/publishing.nsf/Content/ohp-rabies-consumer-info.htm |work=The Department of Health |access-date=1 March 2014 |date=Dec 2013 |url-status=live |archive-url=https://web.archive.org/web/20140304235230/http://www.health.gov.au/internet/main/publishing.nsf/Content/ohp-rabies-consumer-info.htm |archive-date=4 March 2014}}</ref> It is spread when an infected animal bites or scratches a human or other animals.<ref name="WHO2013" /> Saliva from an infected animal can also transmit rabies if the saliva comes into contact with the eyes, mouth, or nose.<ref name="WHO2013" /> Globally, dogs are the most common animal involved.<ref name="WHO2013" /> In countries where dogs commonly have the disease, more than 99% of rabies cases in humans are the direct result of [[dog bites]].<ref name="Tint2010">{{cite book | vauthors = Tintinalli JE |title=Emergency Medicine: A Comprehensive Study Guide (Emergency Medicine (Tintinalli)) |publisher=McGraw-Hill |year=2010 |pages=Chapter 152 |isbn=978-0-07-148480-0}}</ref> In the [[Americas]], [[bat]] bites are the most common source of rabies infections in humans, and less than 5% of cases are from dogs.<ref name="WHO2013" /><ref name="Tint2010" /> [[Rodent]]s are very rarely infected with rabies.<ref name="Tint2010" /> The disease can be diagnosed only after the start of symptoms.<ref name="WHO2013" />
<!-- Cause and diagnosis-->
Rabies is caused by ''[[lyssavirus]]es'' including: [[rabies virus]] and [[Australian bat lyssavirus]].<ref name="The Department of Health">{{cite web|title=Rabies, Australian bat lyssavirus and other lyssaviruses|url=http://www.health.gov.au/internet/main/publishing.nsf/Content/ohp-rabies-consumer-info.htm|work=The Department of Health|accessdate=1 March 2014|date=Dec 2013}}</ref> Rabies is spread when an infected animal scratches or bites another animal or human.<ref name=WHO2013/> Saliva from an infected animal can also transmit rabies if the saliva comes into contact with the eyes, mouth, or nose.<ref name=WHO2013/> Globally, dogs are the most common animal involved.<ref name=WHO2013/> More than 99% of rabies cases in countries where [[dog]]s commonly have the disease are caused by [[dog bites]].<ref name=Tint2010>{{cite book |author=Tintinalli, Judith E. |title=Emergency Medicine: A Comprehensive Study Guide (Emergency Medicine (Tintinalli))|publisher=McGraw-Hill |year=2010 |pages=Chapter 152 |isbn=0-07-148480-9}}</ref> In the [[Americas]], [[bat]] bites are the most common source of rabies infections in humans, and less than 5% of cases are from dogs.<ref name=WHO2013/><ref name=Tint2010/> Rodents are very rarely infected with rabies.<ref name=Tint2010/> The [[rabies virus]] travels to the brain by following the [[Peripheral nervous system|peripheral nerves]]. The disease can only be diagnosed after the start of symptoms.<ref name=WHO2013/>


Animal control and vaccination programs have decreased the risk of rabies from dogs in a number of regions of the world.<ref name="WHO2013" /> Immunizing people before they are exposed is recommended for those at high risk, including those who work with bats or who spend prolonged periods in areas of the world where rabies is common.<ref name="WHO2013" /> In people who have been exposed to rabies, the [[rabies vaccine]] and sometimes [[rabies immunoglobulin]] are effective in preventing the disease if the person receives the treatment before the start of rabies symptoms.<ref name="WHO2013" /> Washing bites and scratches for 15 minutes with soap and water, [[povidone-iodine]], or detergent may reduce the number of viral particles and may be somewhat effective at preventing transmission.<ref name="WHO2013">{{cite web |title=Rabies Fact Sheet N°99 |url=https://www.who.int/mediacentre/factsheets/fs099/en/ |work=World Health Organization |access-date=28 February 2014 |date=July 2013 |url-status=live |archive-url=https://web.archive.org/web/20140401075427/http://www.who.int/mediacentre/factsheets/fs099/en/ |archive-date=1 April 2014}}</ref><ref>{{cite book | vauthors = Wunner WH |title=Rabies: Scientific Basis of the Disease and Its Management |date=2010 |publisher=Academic Press |isbn=978-0-08-055009-1 |page=556 |url=https://books.google.com/books?id=C-U1LFK5zagC&pg=PA556}}</ref> {{As of|2016}}, only fourteen people were documented to have survived a rabies infection after showing symptoms.<ref name="ManojMukherjee2016">{{cite journal |vauthors=Manoj S, Mukherjee A, Johri S, Kumar KV |title=Recovery from rabies, a universally fatal disease |journal=Military Medical Research |volume=3 |issue=1 |pages=21 |year=2016 |pmid=27429788 |pmc=4947331 |doi=10.1186/s40779-016-0089-y |doi-access=free |issn = 2054-9369}}</ref><ref>{{cite journal | vauthors = Weyer J, Msimang-Dermaux V, Paweska JT, Blumberg LH, Le Roux K, Govender P, Coertse J, Markotter W, Nel LH | display-authors = 6 |title=A case of human survival of rabies, South Africa |journal=Southern African Journal of Infectious Diseases |date=9 June 2016 |volume=31 |issue=2 |pages=66–68 |doi=10.1080/23120053.2016.1128151 |issn=2312-0053|doi-access=free|hdl=2263/59121 |hdl-access=free }}</ref> However, research conducted in 2010 among a population of people in [[Peru]] with a self-reported history of one or more bites from [[vampire bat]]s (commonly infected with rabies), found that out of 73 individuals reporting previous bat bites, seven people had rabies virus-neutralizing [[antibodies]] (rVNA).<ref>{{cite journal | vauthors = Gilbert AT, Petersen BW, Recuenco S, Niezgoda M, Gómez J, Laguna-Torres VA, Rupprecht C | title = Evidence of rabies virus exposure among humans in the Peruvian Amazon | journal = The American Journal of Tropical Medicine and Hygiene | volume = 87 | issue = 2 | pages = 206–215 | date = August 2012 | pmid = 22855749 | pmc = 3414554 | doi = 10.4269/ajtmh.2012.11-0689 }}</ref> Since only one member of this group reported prior vaccination for rabies, the findings of the research suggest previously undocumented cases of infection and viral replication followed by an abortive infection. This could indicate that people may have an exposure to the virus without treatment and develop natural antibodies as a result.
<!-- Prevention and Treatment -->
Animal control and vaccination programs have decreased the risk of rabies from dogs in a number of regions of the world.<ref name=WHO2013/> Immunizing people before they are exposed is recommended for those who are at high risk. The high-risk group includes people who work with bats or who spend prolonged periods in areas of the world where rabies is common.<ref name=WHO2013/> In people who have been exposed to rabies, the [[rabies vaccine]] and sometimes rabies [[immunoglobulin]] are effective in preventing the disease if the person receives the treatment before the start of rabies symptoms.<ref name=WHO2013/> Washing bites and scratches for 15 minutes with soap and water, [[povidone iodine]], or detergent may reduce the number of viral particles and may be somewhat effective at preventing transmission.<ref name=WHO2013>{{cite web|title=Rabies Fact Sheet N°99|url=http://www.who.int/mediacentre/factsheets/fs099/en/|work=World Health Organization|accessdate=28 February 2014|date=July 2013}}</ref><ref>{{cite book|author1=William H. Wunner|title=Rabies: Scientific Basis of the Disease and Its Management|date=2010|publisher=Academic Press|isbn=9780080550091|page=556|url=https://books.google.ca/books?id=C-U1LFK5zagC&pg=PA556}}</ref> Only five people have survived a rabies infection after showing symptoms, and this was with extensive treatment known as the [[Milwaukee protocol]].<ref>{{cite journal | author = Hemachudha T, Ugolini G, Wacharapluesadee S, Sungkarat W, Shuangshoti S, Laothamatas J | title = Human rabies: neuropathogenesis, diagnosis, and management. | journal = Lancet neurology | volume = 12 | issue = 5 | pages = 498–513 | date = May 2013 | pmid = 23602163 | doi = 10.1016/s1474-4422(13)70038-3 }}</ref><ref>{{cite web|title=UC Davis Children's Hospital patient becomes third person in U.S. to survive rabies |url=http://www.ucdmc.ucdavis.edu/medicalcenter/features/2010-2011/06/20110616_rabies-survivor.html|publisher=UC Davis Medical Center|accessdate=3 May 2012}}</ref>


Rabies causes about 59,000 deaths worldwide per year,<ref name="CDC01"/> about 40% of which are in children under the age of 15.<ref>{{cite web |title=Rabies: The Facts |url=https://www.who.int/rabies/rabies_Infographic_updated_Global_International_meeting.pdf?ua=1 |website=World Health Organization |access-date=24 February 2017 |url-status=live |archive-url=https://web.archive.org/web/20170224220204/http://www.who.int/rabies/rabies_Infographic_updated_Global_International_meeting.pdf?ua=1 |archive-date=24 February 2017}}</ref> More than 95% of human deaths from rabies occur in Africa and Asia.<ref name="WHO2013" /> Rabies is present in more than 150 countries and on all continents but Antarctica.<ref name="WHO2013" /> More than 3 billion people live in regions of the world where rabies occurs.<ref name="WHO2013" /> A number of countries, including Australia and Japan, as well as much of Western Europe, do not have rabies among dogs.<ref>{{cite book |title=WHO Expert Consultation on Rabies : second report |date=2013 |publisher=WHO |location=Geneva |isbn=978-92-4-120982-3 |page=3 |edition=2nd |url=http://apps.who.int/iris/bitstream/10665/85346/1/9789240690943_eng.pdf |url-status=live |archive-url=https://web.archive.org/web/20141020024015/http://apps.who.int/iris/bitstream/10665/85346/1/9789240690943_eng.pdf |archive-date=20 October 2014}}</ref><ref name="CDCRFC">{{cite web |title=Rabies-Free Countries and Political Units |url=https://www.cdc.gov/animalimportation/rabies-free-countries.html |work=CDC |access-date=8 May 2019 |url-status=dead |archive-url=https://web.archive.org/web/20140305010256/http://www.cdc.gov/animalimportation/rabies-free-countries.html |archive-date=5 March 2014}}</ref> Many Pacific islands do not have rabies at all.<ref name="CDCRFC" /> It is classified as a [[neglected tropical disease]].<ref name="NTD2017">{{cite web |title=Neglected Tropical Diseases |url=https://www.cdc.gov/globalhealth/ntd/diseases/index.html |website=cdc.gov |access-date=28 November 2014 |date=6 June 2011 |url-status=live |archive-url=https://web.archive.org/web/20141204084219/http://www.cdc.gov/globalhealth/ntd/diseases/index.html |archive-date=4 December 2014}}</ref>
<!-- Epidemiology -->
Rabies causes a lot ofdeaths worldwide per year.<ref name=Giesen2015>{{cite journal|last1=Giesen|first1=A|last2=Gniel|first2=D|last3=Malerczyk|first3=C| title=30 Years of rabies vaccination with Rabipur: a summary of clinical data and global experience| journal=Expert Review of Vaccines|volume=14|issue=3|pages=351–67|date=March 2015|pmid=25683583|doi=10.1586/14760584.2015.1011134|type=Review}}</ref><ref>{{cite journal|last1=GBD 2013 Mortality and Causes of Death|first1=Collaborators|title=Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013.|journal=Lancet (London, England)|date=10 January 2015|volume=385|issue=9963|pages=117–71|pmid=25530442}}</ref> More than 95% of human deaths caused by rabies occur in [[Africa]] and [[Asia]].<ref name=WHO2013/> Rabies is present in more than 150 countries and on all continents but Antarctica.<ref name=WHO2013/> More than 3 billion people live in regions of the world where rabies occurs.<ref name=WHO2013/> A number of countries, including Australia, Canada, Japan, the United States, and Western Europe, do not have rabies among dogs.<ref>{{cite book|title=WHO Expert Consultation on Rabies : second report.|date=2013|publisher=WHO|location=Geneva|isbn=9789241209823|page=3|edition=2|url=http://apps.who.int/iris/bitstream/10665/85346/1/9789240690943_eng.pdf}}</ref><ref>{{cite news|title=Penang on rabies alert|url=http://www.thestar.com.my/News/Nation/2015/09/17/Penang-on-rabies-alert/|accessdate=19 September 2015|publisher=The Star|date=September 17, 2015}}</ref> Many small island nations do not have rabies at all.<ref>{{cite web|title=Rabies-Free Countries and Political Units|url=http://www.cdc.gov/animalimportation/rabies-free-countries.html|work=CDC|accessdate=1 March 2014}}</ref>


The global cost of rabies is estimated to be around US$8.6 billion per year including lost lives and livelihoods, medical care and associated costs, as well as uncalculated [[psychological trauma]].<ref>{{Cite web |title=Rabies |url=https://www.who.int/news-room/fact-sheets/detail/rabies |access-date=2024-08-13 |website=www.who.int }}</ref>
==Signs and symptoms==
[[File:Rabies patient.jpg|right|thumb|A person with rabies, 1959]]
The [[Incubation period|period]] between infection and the first [[Influenza-like illness|symptoms]] (incubation period) is typically 1–3 months in humans.<ref name=Giesen2015/> [[Incubation period]]s as short as four days and longer than six years have been documented, depending on the location and severity of the contaminated wound, and the amount of virus introduced.<ref name=Giesen2015/> Initial signs and symptoms of rabies are often nonspecific such as fever and headache.<ref name=Giesen2015/> As rabies progresses and causes [[meningoencephalitis|inflammation of the brain and/or meninges]], signs and symptoms can include slight or partial [[paralysis]], [[anxiety]], [[insomnia]], [[confusion]], [[wikt:restlessness|agitation]], abnormal behavior, [[paranoia]], terror, and [[hallucination]]s, progressing to [[delirium]] and [[coma]].<ref name=Robbins/><ref name=Giesen2015/> The person may also have [[hydrophobia]].<ref name=WHO2013/>


==Etymology==
Death usually occurs 2 to 10 days after first symptoms. Survival is rare once symptoms have presented,<ref name=Giesen2015/> even with the administration of proper and intensive care.<ref name="Expert Review of Anti-infective Therapy">{{cite journal | author = Rupprecht CE, Willoughby R, Slate D | title = Current and future trends in the prevention, treatment and control of rabies | journal = Expert Review of Anti-infective Therapy | volume = 4 | issue = 6 | pages = 1021–38 | year = 2006 | pmid = 17181418 | doi = 10.1586/14787210.4.6.1021 }}</ref> Jeanna Giese, who in 2004 was the first patient treated with the [[Milwaukee protocol]],<ref name="Lite2009">{{cite magazine | url=http://www.scientificamerican.com/article.cfm?id=jeanna-giese-rabies-survivor | title=Medical Mystery: Only One Person Has Survived Rabies without Vaccine—But How? |magazine= [[Scientific American]] | author = Jordan Lite | date = 2008-10-08 | accessdate = 2010-01-30 }}</ref> became the first person ever recorded to have survived rabies without receiving successful [[post-exposure prophylaxis]]. An [[intention-to-treat analysis]] has since found this protocol has a survival rate of about 8%.<ref name="doi10.2217/fvl.09.52" />
The name rabies is derived from the [[Latin]] ''rabies'', meaning "madness".<ref name="SimpsonDP1979">{{cite book |vauthors=Simpson DP |title=Cassell's Latin Dictionary |publisher=Cassell |year=1979 |edition=5th |location=London |page=883 |isbn=978-0-304-52257-6}}</ref> The Greeks derived the word ''lyssa'', from ''lud'' or "violent"; this root is used in the genus name of the rabies virus, ''Lyssavirus''.<ref name="Rotivel">{{cite journal | vauthors = Rotivel Y | veditors = Rupprecht CE, Smith JS, Fekadu M, Childs JE | title = Introduction: The ascension of wildlife rabies: a cause for public health concern or intervention? | journal = Emerging Infectious Diseases | volume = 1 | issue = 4 | pages = 107–114 | date = 1995 | pmid = 8903179 | pmc = 2626887 | doi = 10.3201/eid0104.950401 |url=https://fas.org/ahead/docs/rabies.htm |archive-url=https://web.archive.org/web/20090426031557/http://www.fas.org/ahead/docs/rabies.htm |archive-date=26 April 2009 }}</ref>


== Signs and symptoms ==
===Hydrophobia===
[[File:Dog with rabies.jpg|thumb|left|upright|Animals with "dumb" rabies appear depressed, lethargic, and uncoordinated]]
[[Image:Rabid dog.jpg|thumb|A rabid dog]]
Hydrophobia ("fear of water") is the historic name for rabies.<ref>{{cite book|last1=Smallman-Raynor|first1=Andrew Cliff, Peter Haggett, Matthew|title=World atlas of epidemic diseases|date=2004|publisher=Arnold|location=London|isbn=9780340761717|page=51|url=https://books.google.com/books?id=yNVCiNnGVvsC&pg=PA51}}</ref> It refers to a set of symptoms in the later stages of an infection in which the person has difficulty swallowing, shows panic when presented with liquids to drink, and cannot quench his or her thirst. Any mammal infected with the virus may demonstrate hydrophobia.<ref name=NHS/>


The [[Incubation period|period]] between infection and the first [[Influenza-like illness|symptoms]] (incubation period) is typically one to three months in humans.<ref name="Giesen2015" /> This period may be as short as four days or longer than six years, depending on the location and severity of the wound and the amount of virus introduced.<ref name="Giesen2015" /> Initial symptoms of rabies are often nonspecific, such as fever and headache.<ref name="Giesen2015">{{cite journal |vauthors=Giesen A, Gniel D, Malerczyk C |title=30 Years of rabies vaccination with Rabipur: a summary of clinical data and global experience |journal=Expert Review of Vaccines |volume=14 |issue=3 |pages=351–367 |date=March 2015 |pmid=25683583 |doi=10.1586/14760584.2015.1011134 |type=Review |doi-access=free}}</ref> As rabies progresses and causes [[meningoencephalitis|inflammation of the brain and meninges]], symptoms can include slight or partial [[paralysis]], [[anxiety]], [[insomnia]], [[confusion]], [[psychomotor agitation|agitation]], abnormal behavior, [[paranoia]], [[Fear|terror]], and [[hallucination]]s.<ref name="Robbins" /><ref name="Giesen2015" /> The person may also have fear of water.<ref name="WHO2013" />
Saliva production is greatly increased, and attempts to drink, or even the intention or suggestion of drinking, may cause excruciatingly painful spasms of the muscles in the throat and [[larynx]]. This can be attributed to the fact that the virus multiplies and assimilates in the [[salivary gland]]s of the infected animal for the purpose of further transmission through biting. The infected animal's ability to transmit the virus would reduce significantly if it could swallow saliva and water.<ref>{{cite web|url=http://www.animalswecare.com/home_section/rabies/|website=AnimalsWeCare.com|title=Rabies}}</ref>


The symptoms eventually progress to [[delirium]] and [[coma]].<ref name="Robbins" /><ref name="Giesen2015" /> [[Death]] usually occurs two to ten days after first symptoms. Survival is almost unknown once symptoms have presented, even with intensive care.<ref name="Giesen2015" /><ref name="Expert Review of Anti-infective Therapy">{{cite journal |vauthors=Rupprecht CE, Willoughby R, Slate D |title=Current and future trends in the prevention, treatment and control of rabies |journal=Expert Review of Anti-Infective Therapy |volume=4 |issue=6 |pages=1021–38 |date=December 2006 |pmid=17181418 |doi=10.1586/14787210.4.6.1021 |s2cid=36979186}}</ref>
Hydrophobia is commonly associated with furious rabies, which affects 80% of the infected people. The remaining 20% may experience a paralytic form of rabies that is marked by muscle weakness, loss of sensation, and paralysis; this form of rabies does not usually cause fear of water.<ref name=NHS>{{cite web|title=Symptoms of rabies|url=http://www.nhs.uk/Conditions/Rabies/Pages/Symptoms.aspx|website=NHS.uk|accessdate=3 September 2014|date=June 12, 2012}}</ref>

[[File:Hydrophobia in rabies.webm|thumb|Man with rabies displaying hydrophobia]]

Rabies has also occasionally been referred to as hydrophobia ("fear of water") throughout its history.<ref>{{cite book | vauthors = Cliff AD, Haggett P, Smallman-Raynor M |title=World atlas of epidemic diseases |date=2004 |publisher=Arnold |location=London |isbn=978-0-340-76171-7 |page=51 |url=https://books.google.com/books?id=yNVCiNnGVvsC&pg=PA51}}</ref> It refers to a set of symptoms in the later stages of an infection in which the person has difficulty swallowing, shows panic when presented with liquids to drink, and cannot quench their thirst. Saliva production is greatly increased, and attempts to drink, or even the intention or suggestion of drinking, may cause excruciatingly painful spasms of the muscles in the throat and [[larynx]]. Since the infected individual cannot swallow saliva and water, the virus has a much higher chance of being transmitted, because it multiplies and accumulates in the [[salivary gland]]s and is transmitted through biting.<ref>{{cite web |url=http://www.animalswecare.com/home_section/rabies/ |website=AnimalsWeCare.com |title=Rabies |url-status=dead |archive-url=https://web.archive.org/web/20140903193928/http://www.animalswecare.com/home_section/rabies/ |archive-date=3 September 2014}}</ref>

Hydrophobia is commonly associated with furious rabies, which affects 80% of rabies-infected people. This form of rabies causes irrational aggression in the host, which aids in the spreading of the virus through animal bites;<ref>{{cite web |title=How does rabies cause aggression? |url=https://www.medicalnewstoday.com/articles/319735#Virus-interacts-with-muscle-receptors |website=medicalnewstoday.com |date=14 October 2017 |publisher=Medical News Today |access-date=19 January 2023}}</ref><ref>{{Cite journal |last1=Tian |first1=Zhaoxing |last2=Chen |first2=Yingyu |last3=Yan |first3=Wei |date=December 2019 |title=Clinical features of rabies patients with abnormal sexual behaviors as the presenting manifestations: a case report and literature review |journal=BMC Infectious Diseases |volume=19 |issue=1 |page=679 |doi=10.1186/s12879-019-4252-4 |doi-access=free |issn=1471-2334 |pmc=6670183 |pmid=31370800}}</ref> a "foaming at the mouth" effect, caused by the accumulation of saliva, is also commonly associated with rabies in the public perception and in popular culture.<ref>{{cite book| vauthors = Wilson PJ, Rohde RE, Oertli EH, Willoughby Jr RE |date=2019 |title=Rabies: Clinical Considerations and Exposure Evaluations|url=https://books.google.com/books?id=vnWODwAAQBAJ&pg=PA28|publisher=[[Elsevier]]|page=28|isbn=978-0-323-63979-8|access-date=May 10, 2023}}</ref><ref>{{cite web|url=https://www.cdc.gov/rabiesandkids/amy.html|title=How Do You Know if an Animal Has Rabies? |work=CDC Rabies and Kids|publisher=[[Centers for Disease Control and Prevention]] |author=CDC|access-date=May 10, 2023}}</ref><ref>{{cite web|url=https://kidshealth.org/en/parents/rabies.html|title=Rabies (for Parents)|website=KidsHealth.org|publisher=[[Nemours KidsHealth]]|access-date=May 10, 2023}}</ref> The remaining 20% may experience a paralytic form of rabies that is marked by muscle [[Muscle weakness|weakness]], loss of sensation, and [[paralysis]]; this form of rabies does not usually cause fear of water.<ref name="NHS">{{cite web |title=Symptoms of rabies |url=http://www.nhs.uk/Conditions/Rabies/Pages/Symptoms.aspx |website=NHS.uk |access-date=3 September 2014 |date=12 June 2012 |url-status=live |archive-url=https://web.archive.org/web/20140914174652/http://www.nhs.uk/Conditions/Rabies/Pages/Symptoms.aspx |archive-date=14 September 2014}}</ref>


==Cause==
==Cause==
<gallery widths="200" heights="200">
[[File:Rabies Virus EM PHIL 1876.JPG|thumb|[[Transmission electron microscopy|TEM]] [[micrograph]] with numerous rabies [[virion]]s (small, dark grey, rodlike particles) and [[Negri bodies]] (the larger [[pathognomonic]] cellular inclusions of rabies infection)]]
File:Rabies Virus.jpg|Rendering of the rabies virus
Rabies is caused by a number of ''[[lyssavirus]]es'' including: [[rabies virus]] and [[Australian bat lyssavirus]].<ref name="The Department of Health"/>
File:Electron microscope image of rabies virus.jpg|An electron microscope image of the rabies virus
File:Rabies Virus EM PHIL 1876.JPG|[[Transmission electron microscopy|TEM]] [[micrograph]] with numerous rabies [[virion]]s (small, dark grey, rodlike particles) and [[Negri bodies]] (the larger [[pathognomonic]] cellular inclusions of rabies infection)
</gallery>


Rabies is caused by a number of [[lyssavirus]]es including the [[rabies virus]] and [[Australian bat lyssavirus]].<ref name="Au2014" /> [[Duvenhage lyssavirus]] may cause a rabies-like infection.<ref name="Thiel2009">{{cite journal |vauthors=van Thiel PP, de Bie RM, Eftimov F, Tepaske R, Zaaijer HL, van Doornum GJ, Schutten M, Osterhaus AD, Majoie CB, Aronica E, Fehlner-Gardiner C, Wandeler AI, Kager PA |display-authors=6 |title=Fatal human rabies due to Duvenhage virus from a bat in Kenya: failure of treatment with coma-induction, ketamine, and antiviral drugs |journal=PLOS Neglected Tropical Diseases |volume=3 |issue=7 |pages=e428 |date=July 2009 |pmid=19636367 |pmc=2710506 |doi=10.1371/journal.pntd.0000428 |doi-access=free }}</ref>
The rabies virus is the [[type species]] of the Lyssavirus [[genus]], in the family'' [[Rhabdoviridae]]'', order ''[[Mononegavirales]]''. Lyssaviruses have helical symmetry, with a length of about 180&nbsp;[[nanometre|nm]] and a cross-section of about 75&nbsp;nm.<ref name=Sherris>{{cite book | author = Drew WL | chapter= Chapter 41: Rabies | editors = Ryan KJ, Ray CG (editors) | title = Sherris Medical Microbiology | edition = 4th | pages=597–600 | publisher = McGraw Hill | year = 2004 | isbn = 0-8385-8529-9 }}</ref> These viruses are [[Viral envelope|enveloped]] and have a single-stranded [[RNA]] genome with [[negative-sense#Negative-sense|negative sense]]. The genetic information is packed as a [[ribonucleoprotein]] complex in which RNA is tightly bound by the viral nucleoprotein. The [[RNA genome]] of the virus encodes five genes whose order is highly conserved: nucleoprotein (N), phosphoprotein (P), matrix protein (M), glycoprotein (G), and the viral RNA polymerase (L).<ref name="pmid15885837">{{cite journal | author = Finke S, Conzelmann KK | title = Replication strategies of rabies virus | journal = Virus Res. | volume = 111 | issue = 2 | pages = 120–31 | date = August 2005 | pmid = 15885837 | doi = 10.1016/j.virusres.2005.04.004 | url = }}</ref>


The rabies virus is the [[type species]] of the ''[[Lyssavirus]]'' [[genus]], in the family'' [[Rhabdoviridae]]'', order ''[[Mononegavirales]]''. Lyssavirions have helical symmetry, with a length of about 180&nbsp;[[nanometre|nm]] and a cross-section of about 75&nbsp;nm.<ref name="Sherris">{{cite book |vauthors=Drew WL |chapter=Chapter 41: Rabies | veditors = Ryan KJ, Ray CG |title=Sherris Medical Microbiology |edition=4th |pages=597–600 |publisher=McGraw Hill |year=2004 |isbn=978-0-8385-8529-0}}</ref> These virions are [[Viral envelope|enveloped]] and have a single-stranded [[RNA]] genome with [[negative-sense#Negative-sense|negative sense]]. The genetic information is packed as a [[ribonucleoprotein]] complex in which RNA is tightly bound by the viral nucleoprotein. The [[RNA genome]] of the virus encodes five genes whose order is highly conserved: nucleoprotein (N), phosphoprotein (P), matrix protein (M), glycoprotein (G), and the viral RNA polymerase (L).<ref name="pmid15885837">{{cite journal |vauthors=Finke S, Conzelmann KK |title=Replication strategies of rabies virus |journal=Virus Research |volume=111 |issue=2 |pages=120–131 |date=August 2005 |pmid=15885837 |doi=10.1016/j.virusres.2005.04.004}}</ref>
Once within a muscle or nerve cell, the virus undergoes replication. The trimeric spikes on the exterior of the membrane of the virus interact with a specific cell receptor, the most likely one being the [[acetylcholine]] receptor, [[acetyl]]. The cellular membrane pinches in a procession known as [[pinocytosis]] and allows entry of the virus into the cell by way of an [[endosome]]. The virus then uses the acidic environment, which is necessary, of that endosome and binds to its membrane simultaneously, releasing its five proteins and single strand RNA into the cytoplasm.<ref name=CDC_Rabies_PEP />


To enter cells, trimeric spikes on the exterior of the membrane of the virus interact with a specific cell receptor, the most likely one being the [[acetylcholine]] receptor. The cellular membrane pinches in a procession known as [[pinocytosis]] and allows entry of the virus into the cell by way of an [[endosome]]. The virus then uses the acidic environment, which is necessary, of that endosome and binds to its membrane simultaneously, releasing its five proteins and single-strand RNA into the cytoplasm.<ref name="CDC_Rabies_PEP" />
The L protein then transcribes five mRNA strands and a positive strand of RNA all from the original negative strand RNA using free nucleotides in the cytoplasm. These five mRNA strands are then translated into their corresponding proteins (P, L, N, G and M proteins) at free ribosomes in the cytoplasm. Some proteins require post-translative modifications. For example, the G protein travels through the rough [[endoplasmic reticulum]], where it undergoes further folding, and is then transported to the [[Golgi apparatus]], where a sugar group is added to it ([[glycosylation]]).<ref name=CDC_Rabies_PEP />


Where there are enough proteins, the viral polymerase will begin to synthesize new negative strands of RNA from the template of the positive strand RNA. These negative strands will then form complexes with the N, P, L and M proteins and then travel to the inner membrane of the cell, where a G protein has embedded itself in the membrane. The G protein then coils around the N-P-L-M complex of proteins taking some of the host cell membrane with it, which will form the new outer envelope of the virus particle. The virus then buds from the cell.<ref name=CDC_Rabies_PEP />
Once within a muscle or nerve cell, the virus undergoes replication. The L protein then transcribes five mRNA strands and a positive strand of RNA all from the original negative strand RNA using free nucleotides in the cytoplasm. These five mRNA strands are then translated into their corresponding proteins (P, L, N, G and M proteins) at free ribosomes in the cytoplasm. Some proteins require post-translational modifications. For example, the G protein travels through the rough [[endoplasmic reticulum]], where it undergoes further folding, and is then transported to the [[Golgi apparatus]], where a sugar group is added to it ([[glycosylation]]).<ref name="CDC_Rabies_PEP" />


When there are enough viral proteins, the viral polymerase will begin to synthesize new negative strands of RNA from the template of the positive-strand RNA. These negative strands will then form complexes with the N, P, L and M proteins and then travel to the inner membrane of the cell, where a G protein has embedded itself in the membrane. The G protein then coils around the N-P-L-M complex of proteins taking some of the host cell membrane with it, which will form the new outer envelope of the virus particle. The virus then buds from the cell.<ref name="CDC_Rabies_PEP" />
From the point of entry, the virus is [[neurotropic virus|neurotropic]], traveling quickly along the neural pathways into the [[central nervous system]]. The virus usually first infects muscle cells close to the site of infection, where they are able to replicate without being 'noticed' by the host's immune system. Once enough virus has been replicated, they begin to bind to acetyl choline receptors (p75NR) at the neuromuscular junction.<ref>{{cite web|website=PLOS Pathogens|url=http://www.plospathogens.org/article/info%3Adoi%2F10.1371%2Fjournal.ppat.1004348|title=
Rabies Virus Hijacks and Accelerates the p75NTR Retrograde Axonal Transport Machinery |authors=Gluska, Shani & Zahavi, Eitan Erez & Chein, Michael & Gradus, Tal & Bauer, Anja & Finke, Stefan & Perlson, Eran|date= August 28, 2014|doi= 10.1371/journal.ppat.1004348}}</ref> The virus then travels through the nerve cell axon via retrograde transport, as its P protein interacts with dynein, a protein present in the cytoplasm of nerve cells. Once the virus reaches the cell body it travels rapidly to the Central Nervous System (CNS), replicating in motor neurons and eventually reaching the brain.<ref name=Robbins/> After the brain is infected, the virus travels centrifugally to the peripheral and autonomic nervous systems, eventually migrating to the salivary glands, where it is ready to be transmitted to the next host.


From the point of entry, the virus is [[neurotropic virus|neurotropic]], traveling along the neural pathways into the [[central nervous system]]. The virus usually first infects muscle cells close to the site of infection, where they are able to replicate without being 'noticed' by the host's immune system. Once enough virus has been replicated, they begin to bind to [[acetylcholine receptor]]s at the neuromuscular junction.<ref>{{cite journal |vauthors=Gluska S, Zahavi EE, Chein M, Gradus T, Bauer A, Finke S, Perlson E |title=Rabies Virus Hijacks and accelerates the p75NTR retrograde axonal transport machinery |journal=[[PLOS Pathogens]] |volume=10 |issue=8 |pages=e1004348 |date=August 2014 |pmid=25165859 |pmc=4148448 |doi=10.1371/journal.ppat.1004348 |doi-access=free }}</ref> The virus then travels through the nerve cell axon via [[Axonal transport#Retrograde transport|retrograde transport]], as its [[P protein]] interacts with [[dynein]], a protein present in the cytoplasm of nerve cells. Once the virus reaches the cell body it travels rapidly to the [[central nervous system]] (CNS), replicating in motor neurons and eventually reaching the brain.<ref name="Robbins" /> After the brain is infected, the virus travels centrifugally to the peripheral and autonomic nervous systems, eventually migrating to the salivary glands, where it is ready to be transmitted to the next host.<ref name="Baer1991" />{{rp|317}}
===Transmission===
{{Main|Rabies transmission}}


== Transmission ==
All warm-blooded species, including humans, may become infected with the rabies virus and develop symptoms. [[Bird]]s were first artificially infected with rabies in 1884; however, infected birds are largely if not wholly asymptomatic, and recover.<ref name=serological>{{cite journal |author=Shannon LM, Poulton JL, Emmons RW, Woodie JD, Fowler ME |title=Serological survey for rabies antibodies in raptors from California |journal=J. Wildl. Dis. |volume=24 |issue=2 |pages=264–7 |date=April 1988 |pmid=3286906 |doi=10.7589/0090-3558-24.2.264 |url=http://www.jwildlifedis.org/doi/abs/10.7589/0090-3558-24.2.264}}</ref> Other bird species have been known to develop rabies [[antibody|antibodies]], a sign of infection, after feeding on rabies-infected mammals.<ref name="pmid16498885">{{cite journal | author = Gough PM, Jorgenson RD | title = Rabies antibodies in sera of wild birds | journal = Journal of Wildlife Diseases | volume = 12 | issue = 3 | pages = 392–5 | year = 1976 | pmid = 16498885 | doi = 10.7589/0090-3558-12.3.392| url =http://www.jwildlifedis.org/doi/abs/10.7589/0090-3558-12.3.392}}</ref><ref name=Owls>{{cite journal |author=Jorgenson RD, Gough PM |title=Experimental rabies in a great horned owl |journal=J. Wildl. Dis. |volume=12 |issue=3 |pages=444–7 |date=July 1976 |doi=10.7589/0090-3558-12.3.444 |url=http://www.jwildlifedis.org/doi/abs/10.7589/0090-3558-12.3.444}}</ref>
All [[warm-blooded]] species, including humans, may become infected with the rabies virus and develop symptoms. [[Bird]]s were first artificially infected with rabies in 1884; however, infected birds are largely, if not wholly, asymptomatic, and recover.<ref name="serological">{{cite journal |vauthors=Shannon LM, Poulton JL, Emmons RW, Woodie JD, Fowler ME |title=Serological survey for rabies antibodies in raptors from California |journal=Journal of Wildlife Diseases |volume=24 |issue=2 |pages=264–67 |date=April 1988 |pmid=3286906 |doi=10.7589/0090-3558-24.2.264 |doi-access=free}}</ref> Other bird species have been known to develop rabies [[antibody|antibodies]], a sign of infection, after feeding on rabies-infected mammals.<ref name="pmid16498885">{{cite journal |vauthors=Gough PM, Jorgenson RD |title=Rabies antibodies in sera of wild birds |journal=Journal of Wildlife Diseases |volume=12 |issue=3 |pages=392–5 |date=July 1976 |pmid=16498885 |doi=10.7589/0090-3558-12.3.392 |doi-access=free}}</ref><ref name="Owls">{{cite journal |vauthors=Jorgenson RD, Gough PM, Graham DL |title=Experimental rabies in a great horned owl |journal=Journal of Wildlife Diseases |volume=12 |issue=3 |pages=444–47 |date=July 1976 |pmid=16498892 |doi=10.7589/0090-3558-12.3.444 |s2cid=11374356 }}</ref>


The virus has also adapted to grow in cells of [[poikilotherm]]ic ("cold-blooded") vertebrates.<ref>{{cite web|url=http://virology-online.com/viruses/Rhabdoviruses.htm| title=Rabies |last=Wong|first=Derek |publisher=Wong's Virology|accessdate=19 Mar 2009}}</ref><ref>{{cite book|title=Developments in Veterinary Virology: Rabies|last=Campbell |first=James B. |last2=Charlton |first2=K.M.|publisher=Springer|year=1988|page=48|isbn=0-89838-390-0}}</ref> Most animals can be infected by the virus and can transmit the disease to humans. Infected [[bat]]s,<ref name="pmid13858519">{{cite journal | author = Pawan JL | title = The transmission of paralytic rabies in Trinidad by the vampire bat (''Desmodus rotundus murinus'' Wagner | journal = Caribbean Medical Journal | volume = 21 | pages = 110–36 | year = 1959 | pmid = 13858519 | doi = }}</ref><ref name="pmid14431118">{{cite journal | author = Pawan JL | title = Rabies in the vampire bat of Trinidad, with special reference to the clinical course and the latency of infection | journal = Caribbean Medical Journal | volume = 21 | pages = 137–56 | year = 1959 | pmid = 14431118 | doi = }}</ref> [[monkey]]s, [[raccoon]]s, [[fox]]es, [[skunk]]s, [[cattle]], [[wolf|wolves]], [[coyotes]], [[dog]]s, [[mongoose]]s (normally yellow mongoose)<ref>{{cite journal | author = Taylor PJ | title = A systematic and population genetic approach to the rabies problem in the yellow mongoose (Cynictis penicillata) | journal = The Onderstepoort Journal of Veterinary Research | volume = 60 | issue = 4 | pages = 379–87 | date = December 1993 | pmid = 7777324 }}</ref> and [[cat]]s present the greatest risk to humans.
The virus has also adapted to grow in cells of [[poikilotherm|cold-blooded]] vertebrates.<ref>{{cite web|url=http://virology-online.com/viruses/Rhabdoviruses.htm |title=Rabies | vauthors = Wong D |publisher=Wong's Virology |access-date=19 March 2009 |url-status=live |archive-url=https://web.archive.org/web/20081203053955/http://virology-online.com/viruses/Rhabdoviruses.htm |archive-date=3 December 2008 }}</ref><ref>{{cite book|title=Developments in Veterinary Virology: Rabies| vauthors = Campbell JB, Charlton K |publisher=Springer|year=1988|page=48|isbn=978-0-89838-390-4}}</ref> Most animals can be infected by the virus and can transmit the disease to humans. Worldwide, about 99% of human rabies cases come from domestic dogs.<ref>{{cite web|url=https://www.who.int/news-room/fact-sheets/detail/rabies| title=Rabies| website=World Health Organization| date=21 April 2020| access-date=3 May 2021}}</ref> Other sources of rabies in humans include [[bat]]s,<ref name="pmid13858519">{{cite journal | vauthors = Pawan JL | title = The transmission of paralytic rabies in Trinidad by the vampire bat (''Desmodus rotundus murinus'') Wagner | journal = Caribbean Medical Journal | volume = 21 | pages = 110–136 | year = 1959 | pmid = 13858519 }}</ref><ref name="pmid14431118">{{cite journal | vauthors = Pawan JL | title = Rabies in the vampire bat of Trinidad, with special reference to the clinical course and the latency of infection | journal = Caribbean Medical Journal | volume = 21 | pages = 137–156 | year = 1959 | pmid = 14431118 }}</ref> [[monkey]]s, [[raccoon]]s, [[fox]]es, [[skunk]]s, [[cattle]], [[wolf|wolves]], [[coyotes]], [[cat]]s, and [[mongoose]]s (normally either the small Asian mongoose or the yellow mongoose).<ref>{{cite journal | vauthors = Taylor PJ | title = A systematic and population genetic approach to the rabies problem in the yellow mongoose (''Cynictis penicillata'') | journal = The Onderstepoort Journal of Veterinary Research | volume = 60 | issue = 4 | pages = 379–387 | date = December 1993 | pmid = 7777324 }}</ref>


Rabies may also spread through exposure to infected [[bears]], [[livestock|domestic farm animals]], [[groundhog]]s, [[weasel]]s, and other [[Carnivora|wild carnivorans]]. [[Lagomorphs]], such as [[hare]]s and [[rabbit]]s, and small [[rodent]]s such as [[chipmunk]]s, [[gerbil]]s, [[guinea pig]]s, [[hamster]]s, [[mice]], [[rat]]s, and [[squirrel]]s, are almost never found to be infected with rabies and are not known to transmit rabies to humans.<ref>{{cite web | url=http://www.cdc.gov/rabies/exposure/animals/other.html | title=Rabies. Other Wild Animals: Terrestrial carnivores: raccoons, skunks and foxes. | accessdate=2010-12-23 | publisher=[[Centers for Disease Control and Prevention]](CDC) }}</ref> Bites from mice, rats, or squirrels rarely require rabies prevention because these rodents are typically killed by any encounter with a larger, rabid animal, and would, therefore, not be carriers.<ref>{{cite news|authors= Anderson, Janet & Frey, Rebecca|title=Rabies|work= Gale Encyclopedia of Medicine|edition= 3rd |date= 2006}}</ref> The [[Virginia opossum]] is resistant but not immune to rabies.<ref>{{cite journal | author = McRuer DL, Jones KD | title = Behavioral and nutritional aspects of the Virginian opossum (Didelphis virginiana) | journal = The veterinary clinics of North America. Exotic animal practice | volume = 12 | issue = 2 | pages = 217–36, viii | date = May 2009 | pmid = 19341950 | doi = 10.1016/j.cvex.2009.01.007 }}</ref>
Rabies may also spread through exposure to infected [[bears]], [[livestock|domestic farm animals]], [[groundhog]]s, [[weasel]]s, and other [[Carnivora|wild carnivorans]]. However, [[lagomorphs]], such as [[hare]]s and [[rabbit]]s, and small [[rodent]]s, such as [[chipmunk]]s, [[Gerbillinae|gerbil]]s, [[guinea pig]]s, [[hamster]]s, [[mice]], [[rat]]s, and [[squirrel]]s, are almost never found to be infected with rabies and are not known to transmit rabies to humans.<ref>{{cite web|url=https://www.cdc.gov/rabies/exposure/animals/other.html |title=Rabies. Other Wild Animals: Terrestrial carnivores: raccoons, skunks and foxes. |access-date=2010-12-23 |publisher=[[Centers for Disease Control and Prevention]] |url-status=live |archive-url=https://web.archive.org/web/20101220085305/http://www.cdc.gov/rabies/exposure/animals/other.html |archive-date=20 December 2010 }}</ref> Bites from mice, rats, or squirrels rarely require rabies prevention because these rodents are typically killed by any encounter with a larger, rabid animal, and would, therefore, not be carriers.<ref>{{cite book| vauthors = Anderson J, Frey R | chapter = Rabies | veditors = Fundukian LJ | title = Gale Encyclopedia of Medicine|edition= 3rd |date= 2006}}</ref> The [[Virginia opossum]] (a marsupial, unlike the other mammals named in this paragraph, which are all [[eutherians]]/[[placental]]), has a lower internal body temperature than the rabies virus prefers and therefore is resistant but not immune to rabies.<ref>{{cite journal | vauthors = McRuer DL, Jones KD | title = Behavioral and nutritional aspects of the Virginian opossum (Didelphis virginiana) | journal = The Veterinary Clinics of North America. Exotic Animal Practice | volume = 12 | issue = 2 | pages = 217–236, viii | date = May 2009 | pmid = 19341950 | doi = 10.1016/j.cvex.2009.01.007 }}</ref> [[Marsupials]], along with [[monotremes]] ([[platypuses]] and [[echidnas]]), typically have lower body temperatures than similarly sized [[eutherians]].<ref>{{cite book| title=Abstract: Thermoregulation in marsupials and monotremes, chapter of Marsupials and monotremes: nature's enigmatic mammals| date=2015| vauthors = Gaughan JB, Hogan LA, Wallage A | publisher=Nova Science Publishers, Incorporated| url=https://espace.library.uq.edu.au/view/UQ:380292| isbn=978-1-63483-487-2| accessdate=2022-04-20}}</ref> In 2024, reports emerged that rabies is spreading in South African seals, possibly making it the first outbreak documented in [[marine mammal]]s.<ref>{{Cite news |last=Anthes |first=Emily |date=2024-07-25 |title=Rabies Is Spreading in South African Seals, Scientists Say |url=https://www.nytimes.com/2024/07/25/health/rabies-cape-fur-seals-south-africa.html |access-date=2024-08-04 |work=The New York Times -US |issn=0362-4331}}</ref><ref>{{Cite web |title=Alert on rabies risk along the Western Cape coast: be cautious |url=https://www.westerncape.gov.za/news/alert-rabies-risk-along-western-cape-coast-be-cautious |access-date=2024-08-04 |website=Western Cape Government }}</ref>


The virus is usually present in the nerves and [[saliva]] of a symptomatic rabid animal.<ref>{{cite book|title=The Merck Manual|edition= 11th |date=1983|page= 183}}</ref><ref>{{cite book |title=The Merck manual of Medical Information|edition= Second Home|date=2003|page= 484}}</ref> The route of [[infection]] is usually, but not always, by a bite. In many cases, the infected animal is exceptionally aggressive, may attack without provocation, and exhibits otherwise uncharacteristic behavior.<ref>{{cite web | last = Turton | first = Jenny | title = Rabies: a killer disease | publisher = National Department of Agriculture | year = 2000 |url = http://www.nda.agric.za/docs/rabies/rabies.htm}}</ref> This is an example of a viral pathogen [[Behavior-altering parasites and parasitoids|modifying the behavior of its host]] to facilitate its transmission to other hosts.
The virus is usually present in the nerves and [[saliva]] of a symptomatic rabid animal.<ref>{{cite book|title=The Merck Manual|edition= 11th |date=1983|page= 183}}</ref><ref>{{cite book |title=The Merck manual of Medical Information|edition= Second Home|date=2003|page= 484}}</ref> The route of [[infection]] is usually, but not always, by a bite. In many cases, the infected animal is exceptionally aggressive, may attack without provocation, and exhibits otherwise uncharacteristic behavior.<ref>{{cite web| vauthors = Turton J |title=Rabies: a killer disease |publisher=National Department of Agriculture |year=2000 |url=http://www.nda.agric.za/docs/rabies/rabies.htm |url-status=live |archive-url=https://web.archive.org/web/20060923103559/http://www.nda.agric.za/docs/rabies/rabies.htm |archive-date=23 September 2006 }}</ref> This is an example of a viral pathogen [[Behavior-altering parasites and parasitoids|modifying the behavior of its host]] to facilitate its transmission to other hosts. After a typical human infection by bite, the virus enters the [[peripheral nervous system]]. It then travels retrograde along the [[Efferent nerve fiber|efferent nerve]]s toward the [[central nervous system]].<ref>{{cite book| vauthors = Jackson AC, Wunner WH |title=Rabies |url=https://books.google.com/books?id=p8rMezRaD4oC&pg=PA290 |year=2002 |publisher=Academic Press |isbn=978-0-12-379077-4 |page=290 |url-status=live |archive-url=https://web.archive.org/web/20140108014518/http://books.google.com/books?id=p8rMezRaD4oC&pg=PA290 |archive-date=8 January 2014 }}</ref> During this phase, the virus cannot be easily detected within the host, and vaccination may still confer cell-mediated immunity to prevent symptomatic rabies. When the virus reaches the [[brain]], it rapidly causes [[encephalitis]], the prodromal phase, which is the beginning of the symptoms. Once the patient becomes symptomatic, treatment is almost never effective and mortality is over 99%. Rabies may also inflame the [[spinal cord]], producing [[transverse myelitis]].<ref name="LynnNewton2012">{{cite book|vauthors=Lynn DJ, Newton HB, Rae-Grant AD|title=The 5-Minute Neurology Consult|url=https://books.google.com/books?id=kTzlC4UbFdcC&pg=PA414|year=2012|publisher=Lippincott Williams & Wilkins |isbn=978-1-4511-0012-9 |pages=414–}}</ref><ref>{{cite book| vauthors = Davis LE, King MK, Schultz JL |title=Fundamentals of neurologic disease |url=https://books.google.com/books?id=moRp2jWZp0QC&pg=PA73 |date=2005 |publisher=Demos Medical Publishing |isbn=978-1-888799-84-2 |page=73 |url-status=live |archive-url=https://web.archive.org/web/20140108015452/http://books.google.com/books?id=moRp2jWZp0QC&pg=PA73 |archive-date=8 January 2014 }}</ref>


Although it is theoretically possible for rabies-infected humans to transmit it to others by biting or otherwise, no such cases have ever been documented, because infected humans are usually hospitalized and necessary precautions taken. Casual contact, such as touching a person with rabies or contact with non-infectious fluid or tissue (urine, blood, feces), does not constitute an exposure and does not require post-exposure prophylaxis. But as the virus is present in sperm and vaginal secretions, it might be possible for rabies to spread through sex.<ref>{{cite web | title = Rabies FAQs: Exposure, prevention and treatment | url = https://rabiesalliance.org/rabies/what-is-rabies-and-frequently-asked-questions/exposure-prevention-treatment | work = RabiesAlliance.org | archive-url = https://web.archive.org/web/20160924072630/https://rabiesalliance.org/rabies/what-is-rabies-and-frequently-asked-questions/exposure-prevention-treatment | archive-date = 24 September 2016 }}</ref> There are only a small number of recorded cases of human-to-human transmission of rabies, and all occurred through [[organ transplant]]s, most frequently with [[corneal transplantation]], from infected donors.<ref>{{cite journal | vauthors = Srinivasan A, Burton EC, Kuehnert MJ, Rupprecht C, Sutker WL, Ksiazek TG, Paddock CD, Guarner J, Shieh WJ, Goldsmith C, Hanlon CA, Zoretic J, Fischbach B, Niezgoda M, El-Feky WH, Orciari L, Sanchez EQ, Likos A, Klintmalm GB, Cardo D, LeDuc J, Chamberland ME, Jernigan DB, Zaki SR | display-authors = 6 | title = Transmission of rabies virus from an organ donor to four transplant recipients | journal = The New England Journal of Medicine | volume = 352 | issue = 11 | pages = 1103–11 | date = March 2005 | pmid = 15784663 | doi = 10.1056/NEJMoa043018 | doi-access = free }}</ref><ref>{{cite web | title=Human Rabies Prevention – United States, 2008 Recommendations of the Advisory Committee on Immunization Practices | website=Centers for Disease Control and Prevention | date=2008-05-23 | url=https://www.cdc.gov/mmwr/preview/mmwrhtml/rr5703a1.htm | access-date=2020-02-11}}</ref>
Transmission between humans is extremely rare. A few cases have been recorded through [[organ transplant|transplant surgery]].<ref>{{cite journal | author = Srinivasan, A & Burton, EC & Kuehnert, MJ & Rupprecht, C & Sutker, WL & Ksiazek, TG & Paddock, CD & Guarner, J & Shieh, WJ & Goldsmith, C & Hanlon, CA & Zoretic, J & Fischbach, B & Niezgoda, M & El-Feky, WH & Orciari, L & Sanchez, EQ & Likos, A & Klintmalm, GB & Cardo, D & LeDuc, J & Chamberland, ME & Jernigan, DB & Zaki, SR | title = Transmission of rabies virus from an organ donor to four transplant recipients | journal = [[New England Journal of Medicine|N Engl J Med]] | volume = 352 | issue = 11 | pages = 1103–11 | date = March 2005 | pmid = 15784663 | doi = 10.1056/NEJMoa043018 | url = http://www.nejm.org/doi/pdf/10.1056/NEJMoa043018 | format = PDF }}</ref> After a typical human infection by bite, the virus enters the [[peripheral nervous system]]. It then travels along the [[Afferent nerve fiber|afferent nerve]]s toward the [[central nervous system]].<ref>{{cite book |author=Jackson, Alan C. & Wunner, William H.|title=Rabies|url=https://books.google.com/books?id=p8rMezRaD4oC&pg=PA290 |year=2002|publisher=Academic Press|isbn=978-0-12-379077-4|page=290}}</ref> During this phase, the virus cannot be easily detected within the host, and vaccination may still confer cell-mediated immunity to prevent symptomatic rabies. When the virus reaches the [[brain]], it rapidly causes [[encephalitis]], the prodromal phase, which is the beginning of the symptoms. Once the patient becomes symptomatic, treatment is almost never effective and mortality is over 99%. Rabies may also inflame the [[spinal cord]], producing [[transverse myelitis]].<ref>{{cite book|author=Lynn, Joanne, M.D. |date=October 1997|url=http://www.myelitis.org/tm.htm |title=Transverse Myelitis: Symptoms, Causes and Diagnosis|publisher= The Transverse Myelitis Association}}</ref><ref>{{cite book|authors=Davis, Larry Ernest & King, Molly K. & Schultz, Jessica L. |title=Fundamentals of neurologic disease|url=https://books.google.com/books?id=moRp2jWZp0QC&pg=PA73 |date=June 15, 2005|publisher=Demos Medical Publishing|isbn=978-1-888799-84-2|page=73}}</ref>


==Diagnosis==
== Diagnosis ==
Rabies can be difficult to diagnose, because, in the early stages, it is easily confused with other diseases or with aggressiveness.<ref name=Merck>{{cite book|title=The Merck Veterinary Manual|year=2010|publisher=Courier Kendallville, Inc|location=Kendallville, Indiana|isbn=0-911910-93-X|page=1193|edition=10th|editor=Cynthia M. Kahn, BA, MA}}</ref> The [[Gold standard (test)|reference method]] for diagnosing rabies is the fluorescent antibody test (FAT), an [[immunohistochemistry]] procedure, which is recommended by the [[World Health Organization]] (WHO).<ref>{{cite book |last=Dean |first=D.J. |first2=M.K. |last2=Abelseth |chapter=Ch. 6: The fluorescent antibody test |editor-first=M.M. |editor-last=Kaplan |editor2-first=H. |editor2-last=Koprowski |title=Laboratory techniques in rabies |publisher=World Health Organization |series=Monograph series |volume=23 |year=1973 |isbn= |page=73 |url=https://books.google.com/books?id=0jciAQAAIAAJ |edition=3rd}}</ref> The FAT relies on the ability of a detector molecule (usually fluorescein isothiocyanate) coupled with a rabies-specific antibody, forming a conjugate, to bind to and allow the visualisation of rabies antigen using fluorescent microscopy techniques. Microscopic analysis of samples is the only direct method that allows for the identification of rabies virus-specific antigen in a short time and at a reduced cost, irrespective of geographical origin and status of the host. It has to be regarded as the first step in diagnostic procedures for all laboratories. Autolysed samples can, however, reduce the sensitivity and specificity of the FAT.<ref name="Fooks AR 2009">{{cite journal | author = Fooks AR, Johnson N, Freuling CM, Wakeley PR, Banyard AC, McElhinney LM, Marston DA, Dastjerdi A, Wright E, Weiss RA, Müller T | title = Emerging technologies for the detection of rabies virus: challenges and hopes in the 21st century | journal = PLoS Neglected Tropical Diseases | volume = 3 | issue = 9 | pages = e530 | year = 2009 | pmid = 19787037 | pmc = 2745658 | doi = 10.1371/journal.pntd.0000530 }}</ref> The [[Reverse transcription polymerase chain reaction|RT PCR]] assays proved to be a sensitive and specific tool for routine diagnostic purposes,<ref>{{cite book |last=Tordo |first=N |last2=Bourhy |first2=H |last3=Sacramento |first3=D |chapter=Ch. 10: PCR technology for lyssavirus diagnosis |editor-first=J.P. |editor-last=Clewley |title=The Polymerase Chain Reaction (PCR) for Human Viral Diagnosis |chapterurl=https://books.google.com/books?id=f4vTacTbViQC&pg=PA125 |year=1994 |publisher=CRC Press |isbn=978-0-8493-4833-4 |pages=125–145}}</ref> particularly in decomposed samples<ref name="pmid12034539">{{cite journal | author = David D, Yakobson B, Rotenberg D, Dveres N, Davidson I, Stram Y | title = Rabies virus detection by RT-PCR in decomposed naturally infected brains | journal = Veterinary Microbiology | volume = 87 | issue = 2 | pages = 111–8 | year = 2002 | pmid = 12034539 | doi=10.1016/s0378-1135(02)00041-x}}</ref> or archival specimens.<ref name="pmid17881871">{{cite journal | author = Biswal M, Ratho R, Mishra B | title = Usefulness of reverse transcriptase-polymerase chain reaction for detection of rabies RNA in archival samples | journal = Japanese Journal of Infectious Diseases | volume = 60 | issue = 5 | pages = 298–9 |date=September 2007 | pmid = 17881871 }}</ref> The diagnosis can be reliably made from brain samples taken after death. The diagnosis can also be made from saliva, urine, and cerebrospinal fluid samples, but this is not as [[Sensitivity and specificity|sensitive]] and reliable as brain samples.<ref name="Fooks AR 2009"/> Cerebral inclusion bodies called [[Negri bodies]] are 100% diagnostic for rabies infection but are found in only about 80% of cases.<ref name=Sherris/> If possible, the animal from which the bite was received should also be examined for rabies.<ref name="Ly2009">{{cite journal | author = Ly S, Buchy P, Heng NY, Ong S, Chhor N, Bourhy H, Vong S | title = Rabies situation in Cambodia | journal = PLoS Neglected Tropical Diseases | volume = 3 | issue = 9 | pages = e511 | year = 2009 | pmid = 19907631 | pmc = 2731168 | doi = 10.1371/journal.pntd.0000511 | url = http://www.plosntds.org/article/fetchObjectAttachment.action?uri=info%3Adoi%2F10.1371%2Fjournal.pntd.0000511&representation=PDF | editor1-last = Carabin | editor1-first = Hélène | format = PDF | id = e511 }}</ref>
Rabies can be difficult to diagnose because, in the early stages, it is easily confused with other diseases or even with a simple aggressive temperament.<ref name="Merck">{{cite book|title=The Merck Veterinary Manual|year=2010|publisher=Courier Kendallville, Inc|location=Kendallville, Indiana|isbn=978-0-911910-93-3|page=1193|edition=10th| veditors = Kahn CM, Line S }}</ref> The [[Gold standard (test)|reference method]] for diagnosing rabies is the fluorescent antibody test (FAT), an [[immunohistochemistry]] procedure, which is recommended by the [[World Health Organization]] (WHO).<ref>{{cite book | vauthors = Dean DJ, Abelseth MK |chapter=Ch. 6: The fluorescent antibody test | veditors = Kaplan MM, Koprowski H |title=Laboratory techniques in rabies |publisher=World Health Organization |series=Monograph series |volume=23 |year=1973 |page=73 |isbn=978-92-4-140023-7 |chapter-url=https://books.google.com/books?id=0jciAQAAIAAJ |edition=3rd}}</ref> The FAT relies on the ability of a detector molecule (usually fluorescein isothiocyanate) coupled with a rabies-specific antibody, forming a conjugate, to bind to and allow the visualisation of rabies antigen using fluorescent microscopy techniques. Microscopic analysis of samples is the only direct method that allows for the identification of rabies virus-specific antigen in a short time and at a reduced cost, irrespective of geographical origin and status of the host. It has to be regarded as the first step in diagnostic procedures for all laboratories. Autolysed samples can, however, reduce the sensitivity and specificity of the FAT.<ref name="Fooks AR 2009">{{cite journal | vauthors = Fooks AR, Johnson N, Freuling CM, Wakeley PR, Banyard AC, McElhinney LM, Marston DA, Dastjerdi A, Wright E, Weiss RA, Müller T | display-authors = 6 | title = Emerging technologies for the detection of rabies virus: challenges and hopes in the 21st century | journal = PLOS Neglected Tropical Diseases | volume = 3 | issue = 9 | pages = e530 | date = September 2009 | pmid = 19787037 | pmc = 2745658 | doi = 10.1371/journal.pntd.0000530 | doi-access = free }}</ref> The [[Reverse transcription polymerase chain reaction|RT PCR]] assays proved to be a sensitive and specific tool for routine diagnostic purposes,<ref>{{cite book | vauthors = Tordo N, Bourhy H, Sacramento D |chapter=Ch. 10: PCR technology for lyssavirus diagnosis | veditors = Clewley JP |title=The Polymerase Chain Reaction (PCR) for Human Viral Diagnosis |chapter-url=https://books.google.com/books?id=f4vTacTbViQC&pg=PA125 |year=1994 |publisher=CRC Press |isbn=978-0-8493-4833-4 |pages=125–145}}</ref> particularly in decomposed samples<ref name="pmid12034539">{{cite journal | vauthors = David D, Yakobson B, Rotenberg D, Dveres N, Davidson I, Stram Y | title = Rabies virus detection by RT-PCR in decomposed naturally infected brains | journal = Veterinary Microbiology | volume = 87 | issue = 2 | pages = 111–18 | date = June 2002 | pmid = 12034539 | doi = 10.1016/s0378-1135(02)00041-x }}</ref> or archival specimens.<ref name="pmid17881871">{{cite journal | vauthors = Biswal M, Ratho R, Mishra B | title = Usefulness of reverse transcriptase-polymerase chain reaction for detection of rabies RNA in archival samples | journal = Japanese Journal of Infectious Diseases | volume = 60 | issue = 5 | pages = 298–99 | date = September 2007 | doi = 10.7883/yoken.JJID.2007.298 | pmid = 17881871 }}</ref> The diagnosis can be reliably made from brain samples taken after death. The diagnosis can also be made from saliva, urine, and cerebrospinal fluid samples, but this is not as [[Sensitivity and specificity|sensitive]] or reliable as brain samples.<ref name="Fooks AR 2009" /> Cerebral inclusion bodies called [[Negri bodies]] are 100% diagnostic for rabies infection but are found in only about 80% of cases.<ref name="Sherris" /> If possible, the animal from which the bite was received should also be examined for rabies.<ref name="Ly2009">{{cite journal | vauthors = Ly S, Buchy P, Heng NY, Ong S, Chhor N, Bourhy H, Vong S | title = Rabies situation in Cambodia | journal = PLOS Neglected Tropical Diseases | volume = 3 | issue = 9 | pages = e511 | date = September 2009 | pmid = 19907631 | pmc = 2731168 | doi = 10.1371/journal.pntd.0000511 | veditors = Carabin H | id = e511 | doi-access = free }}</ref>


Some [[Light microscopy#Optical microscopy|light microscopy]] techniques may also be used to diagnose rabies at a tenth of the cost of traditional fluorescence microscopy techniques, allowing identification of the disease in less-developed countries.<ref>{{cite journal | vauthors = Dürr S, Naïssengar S, Mindekem R, Diguimbye C, Niezgoda M, Kuzmin I, Rupprecht CE, Zinsstag J | display-authors = 6 | title = Rabies diagnosis for developing countries | journal = PLOS Neglected Tropical Diseases | volume = 2 | issue = 3 | pages = e206 | date = March 2008 | pmid = 18365035 | pmc = 2268742 | doi = 10.1371/journal.pntd.0000206 | veditors = Cleaveland S | id = e206 | doi-access = free }}</ref> A test for rabies, known as LN34, is easier to run on a dead animal's brain and might help determine who does and does not need post-exposure prevention.<ref name="CDC2018New" /> The test was developed by the [[Centers for Disease Control and Prevention]] (CDC) in 2018.<ref name="CDC2018New">{{cite web|title=New Rapid Rabies Test Could Revolutionize Testing and Treatment |work=CDC Online Newsroom |publisher=Centers for Disease Control and Prevention |url=https://www.cdc.gov/media/releases/2018/p0516-rapid-rabies-test.html |access-date=23 May 2018|date=16 May 2018}}</ref>
The [[differential diagnosis]] in a case of suspected human rabies may initially include any cause of [[encephalitis]], in particular infection with viruses such as [[herpesviridae|herpesviruses]], [[enteroviruses]], and [[arboviruses]] such as [[West Nile virus]]. The most important viruses to rule out are [[herpes simplex virus]] type one, [[varicella zoster virus]], and (less commonly) enteroviruses, including [[coxsackie virus|coxsackievirus]]es, [[echovirus]]es, [[poliovirus]]es, and human [[enterovirus]]es 68 to 71.<ref>{{cite web |url=http://emedicine.medscape.com/article/220967-diagnosis |title=Rabies: Differential Diagnoses & Workup |work= eMedicine Infectious Diseases | date=2008-10-03 |accessdate=2010-01-30}}</ref>


The [[differential diagnosis]] in a case of suspected human rabies may initially include any cause of [[encephalitis]], in particular infection with viruses such as [[herpesviridae|herpesviruses]], [[enterovirus]]es, and [[arboviruses]] such as [[West Nile virus]]. The most important viruses to rule out are [[herpes simplex virus]] type one, [[varicella zoster virus]], and (less commonly) enteroviruses, including [[coxsackie virus|coxsackievirus]]es, [[echovirus]]es, [[poliovirus]]es, and human enteroviruses 68 to 71.<ref>{{cite web|url=http://emedicine.medscape.com/article/220967-diagnosis |title=Rabies: Differential Diagnoses & Workup |work=eMedicine Infectious Diseases |date=3 October 2008 |access-date=2010-01-30 |url-status=live |archive-url=https://web.archive.org/web/20101128074240/http://emedicine.medscape.com/article/220967-diagnosis |archive-date=28 November 2010 }}</ref>
New causes of viral encephalitis are also possible, as was evidenced by the 1999 outbreak in Malaysia of 300 cases of encephalitis with a mortality rate of 40% caused by [[Nipah virus]], a newly recognized [[paramyxovirus]].<ref name="refDiseasesOfSwine">{{cite book |author=Taylor DH, Straw BE, Zimmerman JL, D'Allaire S |title=Diseases of swine |publisher=Blackwell |location=Oxford |year=2006 |pages=463–5 |isbn=0-8138-1703-X |url=https://books.google.com/?id=3o9l77HdZkgC&lpg=PA455&vq=nipah&dq=diseases%20of%20swine&pg=PA463#v=snippet&q=nipah |accessdate=2010-01-30}}</ref> Likewise, well-known viruses may be introduced into new locales, as is illustrated by the recent outbreak of encephalitis due to West Nile virus in the eastern United States.<ref>{{cite book |title=Inflammatory Disorders Of The Nervous System: Pathogenesis, Immunology, and Clinical Management |last=Minagar |first=Alireza |author2=J. Steven Alexander |year=2005 |publisher=Humana Press |isbn=1-58829-424-2 }}</ref> Epidemiologic factors, such as season, geographic location, and the patient's age, travel history, and possible exposure to bites, rodents, and ticks, may help direct the diagnosis.


New causes of viral encephalitis are also possible, as was evidenced by the 1999 outbreak in Malaysia of 300 cases of encephalitis with a mortality rate of 40% caused by [[Nipah virus]], a newly recognized [[Paramyxoviridae|paramyxovirus]].<ref name="refDiseasesOfSwine">{{cite book |vauthors=Taylor DH, Straw BE, Zimmerman JL, D'Allaire S |title=Diseases of swine |publisher=Blackwell |location=Oxford |year=2006 |pages=463–65 |isbn=978-0-8138-1703-3 |url=https://books.google.com/books?id=3o9l77HdZkgC&q=diseases%20of%20swine&pg=PA463 |access-date=2010-01-30}}</ref> Likewise, well-known viruses may be introduced into new locales, as is illustrated by the outbreak of encephalitis due to West Nile virus in the eastern United States.<ref>{{cite book |title=Inflammatory Disorders Of The Nervous System: Pathogenesis, Immunology, and Clinical Management | vauthors = Minagar A, Alexander JS |year=2005 |publisher=Humana Press |isbn=978-1-58829-424-1 }}{{page needed|date=July 2024}}</ref>
Cheaper rabies diagnosis will become possible for low-income settings: accurate rabies diagnosis can be done at a tenth of the cost of traditional testing using basic [[Light microscopy#Optical microscopy|light microscopy]] techniques.<ref>{{cite journal | author = Dürr S, Naïssengar S, Mindekem R, Diguimbye C, Niezgoda M, Kuzmin I, Rupprecht CE, Zinsstag J | title = Rabies diagnosis for developing countries | journal = PLoS Neglected Tropical Diseases | volume = 2 | issue = 3 | pages = e206 | year = 2008 | pmid = 18365035 | pmc = 2268742 | doi = 10.1371/journal.pntd.0000206 | url = http://www.plosntds.org/article/fetchObjectAttachment.action?uri=info%3Adoi%2F10.1371%2Fjournal.pntd.0000206&representation=PDF | editor1-last = Cleaveland | editor1-first = Sarah | format = PDF | id = e206 }}</ref>


==Prevention==
== Prevention ==
{{Further|Dog bite prevention}}
{{Main|Rabies vaccine}}
Almost all human cases of rabies were fatal until a vaccine was developed in 1885 by [[Louis Pasteur]] and [[Émile Roux]]. Their original vaccine was harvested from infected rabbits, from which the virus in the nerve tissue was weakened by allowing it to dry for five to ten days.<ref>{{cite journal | author = Geison GL | title = Pasteur's work on rabies: Reexamining the ethical issues | journal = Hastings Center Report | volume = 8 | issue = 2 | pages = 26–33 | date = April 1978 | pmid = 348641 | doi = 10.2307/3560403 | jstor = 3560403 }}</ref> Similar nerve tissue-derived vaccines are still used in some countries, as they are much cheaper than modern cell culture vaccines.<ref name="pmid15069272">{{cite journal | author = Srivastava AK, Sardana V, Prasad K, Behari M | title = Diagnostic dilemma in flaccid paralysis following anti-rabies vaccine | journal = Neurol India | volume = 52 | issue = 1 | pages = 132–3 | date = March 2004 | pmid = 15069272 | url = http://www.neurologyindia.com/article.asp?issn=0028-3886;year=2004;volume=52;issue=1;spage=132;epage=133;aulast=Srivastava }}</ref>


Almost all human exposure to rabies was fatal until a vaccine was developed in 1885 by [[Louis Pasteur]] and [[Émile Roux]]. Their original vaccine was harvested from infected rabbits, from which the virus in the nerve tissue was weakened by allowing it to dry for five to ten days.<ref>{{cite journal |vauthors=Geison GL |title=Pasteur's work on rabies: reexamining the ethical issues |journal=The Hastings Center Report |volume=8 |issue=2 |pages=26–33 |date=April 1978 |pmid=348641 |doi=10.2307/3560403 |jstor=3560403}}</ref> Similar nerve tissue-derived vaccines are still used in some countries, as they are much cheaper than modern cell culture vaccines.<ref name="pmid15069272">{{cite journal |vauthors=Srivastava AK, Sardana V, Prasad K, Behari M |title=Diagnostic dilemma in flaccid paralysis following anti-rabies vaccine |journal=Neurology India |volume=52 |issue=1 |pages=132–33 |date=March 2004 |pmid=15069272 |url=http://www.neurologyindia.com/article.asp?issn=0028-3886;year=2004;volume=52;issue=1;spage=132;epage=133;aulast=Srivastava |url-status=live |archive-url=https://web.archive.org/web/20090802195908/http://www.neurologyindia.com/article.asp?issn=0028-3886%3Byear%3D2004%3Bvolume%3D52%3Bissue%3D1%3Bspage%3D132%3Bepage%3D133%3Baulast%3DSrivastava |archive-date=2 August 2009}}</ref>
The human diploid cell rabies vaccine was started in 1967. Less expensive purified chicken embryo cell vaccine and purified [[vero cell]] rabies vaccine are now available.<ref name="Ly2009"/> A [[recombinant vaccine]] called V-RG has been used in Belgium, France, Germany, and the United States to prevent outbreaks of rabies in undomesticated animals.<ref name="Reece_2006">{{cite journal | author = Reece JF, Chawla SK | title = Control of rabies in Jaipur, India, by the sterilisation and vaccination of neighbourhood dogs | journal = Vet Rec | volume = 159 | issue = 12 | pages = 379–83 | year = 2006 | pmid = 16980523 | doi = 10.1136/vr.159.12.379 }}</ref> Immunization before exposure has been used in both human and nonhuman populations, where, as in many jurisdictions, domesticated animals are required to be vaccinated.<ref>{{cite web | title = Compendium of Animal Rabies Prevention and Control | date=2007-12-31 | accessdate=2010-01-03 | publisher=National Association of State Public Health Veterinarians | url=http://www.nasphv.org/Documents/RabiesCompendium.pdf}}</ref>


The human diploid cell rabies vaccine was started in 1967. Less expensive purified chicken embryo cell vaccine and purified [[vero cell]] rabies vaccine are now available.<ref name="Ly2009" /> A [[recombinant vaccine]] called V-RG has been used in Belgium, France, Germany, and the United States to prevent outbreaks of rabies in undomesticated animals.<ref name="Reece_2006">{{cite journal |vauthors=Reece JF, Chawla SK |title=Control of rabies in Jaipur, India, by the sterilisation and vaccination of neighbourhood dogs |journal=The Veterinary Record |volume=159 |issue=12 |pages=379–383 |date=September 2006 |pmid=16980523 |doi=10.1136/vr.159.12.379 |s2cid=5959305 }}</ref> Immunization before exposure has been used in both human and nonhuman populations, where, as in many jurisdictions, domesticated animals are required to be vaccinated.<ref>{{cite web |title=Compendium of Animal Rabies Prevention and Control |date=31 December 2007 |access-date=2010-01-03 |publisher=National Association of State Public Health Veterinarians |url=http://www.nasphv.org/Documents/RabiesCompendium.pdf |url-status=dead |archive-url=https://web.archive.org/web/20100712235752/http://www.nasphv.org/Documents/RabiesCompendium.pdf |archive-date=12 July 2010 }}</ref>
The number of recorded human deaths from rabies in the United States has dropped from 100 or more annually in the early 20th century to one or two per year due to widespread vaccination of domestic dogs and cats and the development of human vaccines and immunoglobulin treatments. Most deaths now result from bat bites, which may go unnoticed by the victim and hence untreated.<ref name="CDC_Rabies_Epi">{{cite web | url= http://www.cdc.gov/rabies/location/usa/index.html |title= Rabies in the U.S. | publisher=[[Centers for Disease Control and Prevention]] (CDC) | date=April 22, 2011| accessdate=December 31, 2011}}</ref>


[[File:Rabiesvaccination.png|thumb|A young girl about to receive PEP after being bitten by an animal thought to be rabid]]
The Missouri Department of Health and Senior Services Communicable Disease Surveillance 2007 Annual Report states the following can help reduce the risk of contracting rabies:<ref>{{cite report|date=2007|title=2007 Annual Report|url=http://www.dhss.mo.gov/living/healthcondiseases/communicable/communicabledisease/annual07/Annual07.pdf|publisher=Bureau of Communicable Disease Control and Prevention}}</ref>

The Missouri Department of Health and Senior Services Communicable Disease Surveillance 2007 Annual Report states the following can help reduce the risk of contracting rabies:<ref>{{cite report |date=2007 |title=2007 Annual Report |url=http://www.dhss.mo.gov/living/healthcondiseases/communicable/communicabledisease/annual07/Annual07.pdf |publisher=Bureau of Communicable Disease Control and Prevention |access-date=8 March 2011 |archive-date=11 May 2020 |archive-url=https://web.archive.org/web/20200511190553/https://health.mo.gov/living/healthcondiseases/communicable/communicabledisease/annual07/Annual07.pdf |url-status=dead }}</ref>


* Vaccinating dogs, cats, and ferrets against rabies
* Vaccinating dogs, cats, and ferrets against rabies
Line 94: Line 108:
* If bitten by an animal, washing the wound with soap and water for 10 to 15 minutes and contacting a healthcare provider to determine if post-exposure prophylaxis is required
* If bitten by an animal, washing the wound with soap and water for 10 to 15 minutes and contacting a healthcare provider to determine if post-exposure prophylaxis is required


September 28 is [[World Rabies Day]], which promotes the information, prevention, and elimination of the disease.<ref>{{cite web |url=http://www.who.int/mediacentre/events/annual/world_rabies_day/en/ |title=World Rabies Day | publisher = World Health Organization (WHO) }}</ref>
28 September is [[World Rabies Day]], which promotes the information, prevention, and elimination of the disease.<ref>{{cite web|url=https://www.who.int/mediacentre/events/annual/world_rabies_day/en/ |title=World Rabies Day |publisher=World Health Organization (WHO) |url-status=live |archive-url=https://web.archive.org/web/20111231020108/http://www.who.int/mediacentre/events/annual/world_rabies_day/en/ |archive-date=31 December 2011}}</ref>


In Asia and in parts of the Americas and Africa, dogs remain the principal host. Mandatory vaccination of animals is less effective in rural areas. Especially in developing countries, pets may not be privately kept and their destruction may be unacceptable. Oral vaccines can be safely distributed in baits, a practice that has successfully reduced rabies in rural areas of [[Canada]], [[France]], and the [[United States]]. In [[Montreal]], Quebec, Canada, baits are successfully used on raccoons in the Mount-Royal Park area. Vaccination campaigns may be expensive, but cost-benefit analysis suggests baits may be a cost-effective method of control.<ref>{{cite journal |vauthors=Meltzer MI |title=Assessing the costs and benefits of an oral vaccine for raccoon rabies: a possible model |journal=Emerging Infectious Diseases |volume=2 |issue=4 |pages=343–9 |date=October–December 1996 |pmid=8969251 |pmc=2639934 |doi=10.3201/eid0204.960411}}</ref> In [[Ontario]], a dramatic drop in rabies was recorded when an aerial bait-vaccination campaign was launched.<ref name=Grambo>{{cite book | vauthors = Grambo RL |title=The World of the Fox |year=1995 |publisher=Greystone Books |location=Vancouver |isbn=978-0-87156-377-4 |pages=[https://archive.org/details/worldoffox00gram/page/94 94–95] |url-access=registration |url=https://archive.org/details/worldoffox00gram/page/94}}</ref>
==Treatment==
[[postexposure prophylaxis|Treatment after exposure]] can prevent the disease if administered promptly, generally within 10 days of infection.<ref name=Sherris/> Thoroughly washing the wound as soon as possible with soap and water for approximately five minutes is effective in reducing the number of viral particles.<ref>{{cite web|url=http://www.health.vic.gov.au/ideas/bluebook/rabies_info |title=Rabies & Australian bat lyssavirus information sheet |publisher=Health.vic.gov.au |accessdate=2012-01-30}}</ref> [[Povidone-iodine]] or alcohol is then recommended to reduce the virus further.<ref>{{cite web|author1=National Centre for Disease Control|title=National Guidelines on Rabies Prophylaxis|url=http://nicd.nic.in/Rabies_guidelines2014.pdf|accessdate=5 September 2014|format=pdf|year=2014}}</ref>


The number of recorded human deaths from rabies in the United States has dropped from 100 or more annually in the early 20th century to one or two per year because of widespread vaccination of domestic dogs and cats and the development of human vaccines and immunoglobulin treatments. Most deaths now result from bat bites, which may go unnoticed by the victim and hence untreated.<ref name="CDC_Rabies_Epi">{{cite web |url=https://www.cdc.gov/rabies/location/usa/index.html |title=Rabies in the U.S. |publisher=[[Centers for Disease Control and Prevention]] (CDC) |date=22 April 2011 |access-date=31 December 2011 |url-status=live |archive-url=https://web.archive.org/web/20111231023841/http://www.cdc.gov/rabies/location/usa/index.html |archive-date=31 December 2011}}</ref>
In the US, the [[Centers for Disease Control and Prevention]] recommends people receive one dose of human rabies [[immunoglobulin]] (HRIG) and four doses of rabies vaccine over a 14-day period.<ref>[http://www.cdc.gov/mmwr/pdf/rr/rr5902.pdf "Use of a Reduced (4-Dose) Vaccine Schedule for Postexposure Prophylaxis to Prevent Human Rabies"]. [[Centers for Disease Control and Prevention]] (CDC).</ref> The immunoglobulin dose should not exceed 20 units per kilogram body weight. HRIG is expensive and constitutes most of the cost of postexposure treatment, ranging as high as several thousand dollars.<ref>{{cite web | url= http://www.cdc.gov/rabies/location/usa/cost.html |title=Cost of Rabies Prevention}}</ref> As much as possible of this dose should be injected around the bites, with the remainder being given by deep intramuscular injection at a site distant from the vaccination site.<ref name="CDC_Rabies_PEP">{{cite web | url= http://www.cdc.gov/rabies/exposure/postexposure.html | title= Rabies Post-Exposure Prophylaxis | publisher=[[Centers for Disease Control and Prevention]] (CDC) | date=2009-12-23 | accessdate=2010-01-30}}</ref>


==Treatment==
The first dose of rabies vaccine is given as soon as possible after exposure, with additional doses on days three, seven and 14 after the first. Patients who have previously received pre-exposure vaccination do not receive the immunoglobulin, only the postexposure vaccinations on days 0 and 3.<ref>Park's textbook of Community medicine,22nd edition,2013,p 254</ref>
===After exposure===
[[Postexposure prophylaxis|Treatment after exposure]] can prevent the disease if given within 10 days. The rabies vaccine is 100% effective if given before symptoms of rabies appear.<ref name=Sherris/><ref name="CDC_Rabies_PEP"/><ref name="Lite2009">{{cite magazine|url=http://www.scientificamerican.com/article.cfm?id=jeanna-giese-rabies-survivor |title=Medical Mystery: Only One Person Has Survived Rabies without Vaccine – But How? |magazine=[[Scientific American]] | vauthors = Lite J |date=8 October 2008 |access-date=2010-01-30 |url-status=live |archive-url=https://web.archive.org/web/20091105091606/http://www.scientificamerican.com/article.cfm?id=jeanna-giese-rabies-survivor |archive-date=5 November 2009}}</ref> Every year, more than 15 million people get vaccinated after potential exposure. While this works well, the cost is significant.<ref>{{Cite web|url=https://www.who.int/neglected_diseases/news/human_rabies_better_coordination_and_emerging_technology/en/ |title=Human rabies: better coordination and emerging technology to improve access to vaccines |publisher=World Health Organization |access-date=2017-02-23 |url-status=dead |archive-url=https://web.archive.org/web/20170224131644/http://www.who.int/neglected_diseases/news/human_rabies_better_coordination_and_emerging_technology/en/ |archive-date=24 February 2017}}</ref> In the US it is recommended people receive one dose of human rabies [[immunoglobulin]] (HRIG) and four doses of rabies vaccine over a 14-day period.<ref>{{cite web | url = https://www.cdc.gov/mmwr/pdf/rr/rr5902.pdf | title = Use of a Reduced (4-Dose) Vaccine Schedule for Postexposure Prophylaxis to Prevent Human Rabie | archive-url = https://web.archive.org/web/20110725112251/http://www.cdc.gov/mmwr/PDF/rr/rr5902.pdf | archive-date=25 July 2011 | work = [[Centers for Disease Control and Prevention]] (CDC) }}</ref> HRIG is expensive and makes up most of the cost of post-exposure treatment, ranging as high as several thousand dollars.<ref>{{cite web|url=https://www.cdc.gov/rabies/location/usa/cost.html |title=Cost of Rabies Prevention | work = U.S. Centers for Disease Control and Prevention |url-status=live |archive-url=https://web.archive.org/web/20160329143011/http://www.cdc.gov/rabies/location/usa/cost.html |archive-date=29 March 2016 |date=11 June 2019}}</ref> In the UK, one dose of HRIG costs the National Health Service £1,000,<ref>{{Cite web|url=https://bnf.nice.org.uk/medicinal-forms/rabies-immunoglobulin.html|title=BNF via NICE is only available in the UK | work = The National Institute for Health and Care Excellence | location = UK }}</ref> although this is not flagged as a "high-cost medication".<ref>{{Cite web|url=https://formularymk.nhs.uk/chaptersSubDetails.asp?FormularySectionID=14&SubSectionRef=14.05&SubSectionID=A100|title=Rabies immunoglobulin | work = Milton Keynes Formulary Formulary }}</ref> A full course of vaccine costs £120–180.<ref>{{Cite web|url=https://www.nhs.uk/conditions/rabies/vaccination/|title=Rabies – Vaccination|date=23 October 2017 | work = National Health Services (NHS) | location = UK }}</ref> As much as possible of HRIG should be injected around the bites, with the remainder being given by deep intramuscular injection at a site distant from the vaccination site.<ref name="CDC_Rabies_PEP">{{cite web |url=https://www.cdc.gov/rabies/exposure/postexposure.html |title=Rabies Post-Exposure Prophylaxis |publisher=[[Centers for Disease Control and Prevention]] (CDC) |date=23 December 2009 |access-date=2010-01-30 |url-status=dead |archive-url=https://web.archive.org/web/20100201085054/http://www.cdc.gov/rabies/exposure/postexposure.html |archive-date=1 February 2010}}</ref>


The pain and side effects of modern cell-based vaccines are similar to flu shots. The old nerve-tissue-based vaccinations that require multiple painful injections into the abdomen with a large needle are inexpensive, but are being phased out and replaced by affordable World Health Organization intradermal-vaccination regimens.<ref name="Ly2009"/>
People who have previously been vaccinated against rabies do not need to receive the immunoglobulin—only the postexposure vaccinations on days 0 and 3.<ref>{{cite book |last1=Park K |title=Park's Textbook of Preventive and Social Medicine |date=2013 |publisher=Banarsidas Bhanot, Jabalpur |isbn=978-93-82219-02-6 |edition=22nd | page = 254 }}</ref> The side effects of modern [[cell-based vaccine]]s are similar to the side effects of flu shots. The old nerve-tissue-based vaccination required multiple injections into the abdomen with a large needle but is inexpensive.<ref name="Wilde1991">{{cite journal | vauthors = Hicks DJ, Fooks AR, Johnson N | title = Developments in rabies vaccines | journal = Clinical and Experimental Immunology | volume = 169 | issue = 3 | pages = 199–204 | date = September 2012 | pmid = 22861358 | pmc = 3444995 | doi = 10.1093/clinids/13.4.644 }}</ref> It is being phased out and replaced by affordable World Health Organization intradermal-vaccination regimens.<ref name="Ly2009" /> In children less than a year old, the lateral thigh is recommended.<ref>{{cite web|url=https://www.who.int/ith/vaccines/rabies/en/ |title=Rabies |publisher=[[World Health Organization]] |access-date=1 February 2015 |url-status=live |archive-url=https://web.archive.org/web/20150215014809/http://www.who.int/ith/vaccines/rabies/en/ |archive-date=15 February 2015}}</ref>


Thoroughly washing the wound as soon as possible with soap and water for approximately five minutes is effective in reducing the number of viral particles.<ref>{{cite web |url=http://www.health.vic.gov.au/ideas/bluebook/rabies_info |title=Rabies & Australian bat lyssavirus information sheet |publisher=Health.vic.gov.au |access-date=2012-01-30 |url-status=dead |archive-url=https://web.archive.org/web/20110818081218/http://www.health.vic.gov.au/ideas/bluebook/rabies_info |archive-date=18 August 2011}}</ref> [[Povidone-iodine]] or alcohol is then recommended to reduce the virus further.<ref>{{cite web |author1=National Center for Disease Control |title=National Guidelines on Rabies Prophylaxis |url=http://nicd.nic.in/Rabies_guidelines2014.pdf |access-date=5 September 2014 |year=2014 |url-status=dead |archive-url=https://web.archive.org/web/20140905235321/http://nicd.nic.in/Rabies_guidelines2014.pdf |archive-date=5 September 2014}}</ref>
Intramuscular vaccination should be given into the deltoid, not gluteal area, which has been associated with vaccination failure due to injection into fat rather than muscle. In infants, the lateral thigh is recommended.<ref>{{cite web |url=http://www.who.int/ith/vaccines/rabies/en/ |title=Rabies |author=<!--Staff writer(s); no by-line.--> |website=www.who.int |publisher=[[World Health Organization]] |accessdate=1 February 2015}}</ref>


Awakening to find a bat in the room, or finding a bat in the room of a previously unattended child or mentally disabled or intoxicated person, is regarded as an indication for [[post-exposure prophylaxis]] (PEP). The recommendation for the precautionary use of PEP in occult bat encounters where no contact is recognized has been questioned in the medical literature, based on a cost-benefit analysis.<ref>{{cite journal | author = De Serres G, Skowronski DM, Mimault P, Ouakki M, Maranda-Aubut R, Duval B | title = Bats in the bedroom, bats in the belfry: Reanalysis of the rationale for rabies post-exposure prophylaxis | journal = Clin Infect Dis | volume = 48 | issue = 11 | pages = 1493–9 | year = 2009 | pmid = 19400689 | doi = 10.1086/598998 }}</ref> However, a 2002 study has supported the protocol of precautionary administering of PEP where a child or mentally compromised individual has been alone with a bat, especially in sleep areas, where a bite or exposure may occur without the victim being aware.<ref>{{cite journal | author = Despond O, Tucci M, Decaluwe H, Grégoire MC, S Teitelbaum J, Turgeon N | title = Rabies in a nine-year-old child: The myth of the bite | journal = Can J Infect Dis | volume = 13 | issue = 2 | pages = 121–5 | date = March 2002 | pmid = 18159381 | pmc = 2094861 }}</ref> Begun with little or no delay, PEP is 100% effective against rabies.<ref name="Lite2009"/> In the case in which there has been a significant delay in administering PEP, the treatment should be administered regardless, as it may still be effective.<ref name="CDC_Rabies_PEP"/>
Awakening to find a bat in the room, or finding a bat in the room of a previously unattended child or mentally disabled or intoxicated person, is an indication for [[post-exposure prophylaxis]] (PEP). The recommendation for the precautionary use of PEP in bat encounters where no contact is recognized has been questioned in the medical literature, based on a [[cost–benefit analysis]].<ref>{{cite journal |vauthors=De Serres G, Skowronski DM, Mimault P, Ouakki M, Maranda-Aubut R, Duval B |title=Bats in the bedroom, bats in the belfry: reanalysis of the rationale for rabies postexposure prophylaxis |journal=Clinical Infectious Diseases |volume=48 |issue=11 |pages=1493–99 |date=June 2009 |pmid=19400689 |doi=10.1086/598998 |doi-access=free}}</ref> However, a 2002 study has supported the protocol of precautionary administration of PEP where a child or mentally compromised individual has been alone with a bat, especially in sleep areas, where a bite or exposure may occur with the victim being unaware.<ref>{{cite journal |vauthors=Despond O, Tucci M, Decaluwe H, Grégoire MC, S Teitelbaum J, Turgeon N |title=Rabies in a nine-year-old child: The myth of the bite |journal=The Canadian Journal of Infectious Diseases |volume=13 |issue=2 |pages=121–25 |date=March 2002 |pmid=18159381 |pmc=2094861 |doi=10.1155/2002/475909 |doi-access=free}}</ref>
{{anchor|Jeanna Giese}}


===Induced coma===
===After onset===
Once rabies develops, death almost certainly follows. [[Palliative care]] in a hospital setting is recommended with administration of large doses of pain medication, and sedatives in preference to physical restraint. Ice fragments can be given by mouth for thirst, but there is no good evidence intravenous hydration is of benefit.<ref name=pall>{{cite book |title=Rabies &nbsp;&ndash; Scientific Basis of the Disease and Its Management |publisher=Elsevier Science |veditors=Jackson AC, Fooks AR |isbn=978-0-12-818705-0 |page=561 |chapter=Chapter 17: Therapy of human rabies |doi=10.1016/B978-0-12-818705-0.00017-0 |year=2020 |vauthors=Jackson AC |s2cid=240895449 |edition=4th}}</ref>
{{See also|Milwaukee protocol}}
In 2004, American teenager Jeanna Giese survived an infection of rabies unvaccinated. She was placed into an [[induced coma]] upon onset of symptoms and given [[ketamine]], [[midazolam]], [[ribavirin]], and [[amantadine]]. Her doctors administered treatment based on the hypothesis that detrimental effects of rabies were caused by temporary dysfunctions in the brain and could be avoided by inducing a temporary partial halt in brain function that would protect the brain from damage while giving the immune system time to defeat the virus. After 31 days of isolation and 76 days of hospitalization, Giese was released from the hospital.<ref name="pmid15958806">{{cite journal | author = Willoughby RE, Tieves KS, Hoffman GM, Ghanayem NS, Amlie-Lefond CM, Schwabe MJ, Chusid MJ, Rupprecht CE | title = Survival after treatment of rabies with induction of coma | journal = [[The New England Journal of Medicine|New England Journal of Medicine]] | volume = 352 | issue = 24 | pages = 2508–14 | date = June 2005 | pmid = 15958806 | doi = 10.1056/NEJMoa050382 | url = http://www.nejm.org/doi/pdf/10.1056/NEJMoa050382 | format = PDF }}</ref> She survived with all higher level brain functions, but an inability to walk and balance.<ref>{{cite journal | author = Hu WT, Willoughby RE, Dhonau H, Mack KJ | title = Long-term follow-up after treatment of rabies by induction of coma | journal = [[The New England Journal of Medicine|New England Journal of Medicine]] | volume = 357 | issue = 9 | pages = 945–6 | date = August 2007 | pmid = 17761604 | doi = 10.1056/NEJMc062479 | url = http://www.nejm.org/doi/pdf/10.1056/NEJMc062479 | format = PDF }}</ref> On a podcast of NPR's ''[[Radiolab]]'', Giese recounted, "I had to learn how to stand and then to walk, turn around, move my toes. I was really, after rabies, a new born baby who couldn't do anything. I had to relearn that all...mentally I knew how to do stuff but my body wouldn't cooperate with what I wanted it to do. It definitely took a toll on me psychologically. You know I'm still recovering. I'm not completely back. Stuff like balance and, um, I can't run normally."<ref>{{cite web |title=Rodney Versus Death |date=13 August 2013 |publisher=Radiolab |url=http://www.radiolab.org/story/312245-rodney-versus-death/}}</ref>


A treatment known as the Milwaukee protocol, which involves putting people with rabies symptoms into a [[induced coma|chemically induced coma]] and using [[antiviral medication]]s in an attempt to protect their brain until their body has had time to produce rabies antibodies, has been occasionally used.<ref name=Jack2016>{{cite journal |vauthors=Jackson AC |title=Human Rabies: a 2016 Update |journal=Curr Infect Dis Rep |volume=18 |issue=11 |page=38 |year=2016 |pmid=27730539 |doi=10.1007/s11908-016-0540-y |s2cid=25702043 |type=Review}}</ref> It was initially attempted in 2004 on Jeanna Giese, a teenage girl from [[Wisconsin]], who subsequently became the first human known to have survived rabies without receiving post-exposure prophylaxis before symptom onset.<ref>{{cite news | url=https://www.scientificamerican.com/article/jeanna-giese-rabies-survivor/ | title=Medical Mystery: Only One Person Has Survived Rabies without Vaccine – But How? | work = [[Scientific American]] | author = Jordan Lite | date = 8 October 2008 | accessdate = 2008-10-16 }}</ref><ref name="SciAmApr07">{{cite journal |vauthors=Willoughby RE |title=A cure for a rabies? |journal=Sci Am |volume=296 |issue=4 |pages=88–95 |date=April 2007 |pmid=17479635 |doi=10.1038/scientificamerican0407-88 |bibcode=2007SciAm.296d..88W |url=http://www.scientificamerican.com/article.cfm?id=a-cure-for-rabies}}</ref> Giese did require extensive rehabilitation afterward, and her balance and neural function remained impaired.<ref>{{cite web |url=https://www.fdlreporter.com/story/news/2019/09/12/fond-du-lac-rabies-survivor-jeanna-giese-seeks-save-others-virus/2284305001/ |title=15 years after she survived rabies, Jeanna Giese seeks to save others from it |last=Razner |first=Sarah |date=16 September 2019 |website=FDL Reporter |access-date=29 September 2024}}</ref> The protocol has been enacted on many rabies victims since, but has been adjudged a failure; some survivors of the acute initial phase later died of rabies. Concerns have also been raised about its monetary costs and its ethics.<ref name=Jack2016/><ref name=zeiler>{{cite journal |vauthors=Zeiler FA, Jackson AC |title=Critical Appraisal of the Milwaukee Protocol for Rabies: This Failed Approach Should Be Abandoned |journal=Can J Neurol Sci |volume=43 |issue=1 |pages=44–51 |year=2016 |pmid=26639059 |doi=10.1017/cjn.2015.331 |type=Review|doi-access=free }}</ref>
Giese's treatment regimen became known as the "Milwaukee protocol", which has since undergone revision with the second version omitting the use of [[ribavirin]]. Two of 25 patients survived when treated under the first protocol. A further 10 patients have been treated under the revised protocol, with a further two survivors.<ref name="doi10.2217/fvl.09.52">{{cite journal|doi=10.2217/fvl.09.52|author=Willoughby RE |title=Are we getting closer to the treatment of rabies?: medical benchmarks |year=2009 |url=http://www.medscape.com/viewarticle/712839_7 |publisher=MedScape |journal=Future Virology|volume=4|issue=6|pages=563–70}}</ref> The anesthetic drug [[ketamine]] has shown the potential for rabies virus inhibition in rats,<ref>{{cite journal | author = Lockhart BP, Tordo N, Tsiang H | title = Inhibition of rabies virus transcription in rat cortical neurons with the dissociative anesthetic ketamine | journal = Antimicrob Agents Chemother | volume = 36 | issue = 8 | pages = 1750–5 | year = 1992 | pmid = 1416859 | pmc = 192041 | doi = 10.1128/AAC.36.8.1750 }}</ref> and is used as part of the Milwaukee protocol.


Antiviral therapy to combat the effects of rabies has also been researched; [[favipiravir]], for example, has shown potential at inhibiting the development of encephalitis. It has been suggested that such therapy in combination with [[immunotherapy]] and [[Neuroprotection|neuroprotective measures]] could be beneficial.<ref name=Antiviral>{{cite journal |last1=Appolinario |first1=Camila M |last2=Jackson |first2=Alan C |date=January 2015 |title=Antiviral therapy for human rabies |journal=Antiviral Therapy |volume=20 |issue=1 |pages=1–10 |doi=10.3851/IMP2851 |pmid=25156675 |url=https://journals.sagepub.com/doi/epdf/10.3851/IMP2851 |access-date= 14 November 2024|hdl=11449/158463 |hdl-access=free }}</ref>
On June 12, 2011, Precious Reynolds, an eight-year-old girl from [[Humboldt County, California]], became the third reported person in the [[United States]] to have recovered from rabies without receiving PEP.<ref>{{cite news| newspaper=Health News | title=UC Davis Children's Hospital patient becomes third person in US to survive rabies | date= 2011-06-12 | accessdate=2011-06-12| url=http://www.healthcanal.com/surgery-rehabilitation/17953-Davis-Childrens-Hospital-patient-becomes-third-person-survive-rabies.html}}</ref>


==Prognosis==
==Prognosis==
In unvaccinated humans, rabies is almost always fatal after [[neurological]] symptoms have developed.<ref name="WHO factsheet">{{cite web|url=http://www.who.int/mediacentre/factsheets/fs099/en/|title=Rabies|date=September 2011 |publisher=World Health Organization (WHO) |accessdate=31 December 2011 }}</ref>
[[Vaccination]] after exposure, PEP, is highly successful in preventing rabies.<ref name="Lite2009"/> In unvaccinated humans, rabies is almost certainly fatal after [[neurological]] symptoms have developed.<ref name="WHO factsheet">{{cite web|url=https://www.who.int/mediacentre/factsheets/fs099/en/ |title=Rabies |date=September 2011 |publisher=World Health Organization (WHO) |access-date=31 December 2011 |url-status=live |archive-url=https://web.archive.org/web/20111231021303/http://www.who.int/mediacentre/factsheets/fs099/en/ |archive-date=31 December 2011 }}</ref>

[[Vaccination]] after exposure, PEP, is highly successful in preventing the disease if administered promptly, in general within 6 days of infection. Begun with little or no delay, PEP is 100% effective against rabies.<ref name="Lite2009"/> In the case of significant delay in administering PEP, the treatment still has a chance of success.<ref name="CDC_Rabies_PEP"/>

5 of the first 43 patients (12%) treated with the [[Milwaukee protocol]] survived, and those receiving treatment survived longer than those not receiving the treatment.<ref>{{cite web|url=http://www.mcw.edu/rabies|title=Rabies Registry|publisher=Medical College of Wisconsin|accessdate=29 December 2009|year=2005}}</ref>


==Epidemiology==
==Epidemiology==
{{Main|Prevalence of rabies}}
{{Main|Prevalence of rabies}}
[[File:Rabies Free Countries Sourced 2010.svg|thumb|300px|Rabies-free countries (in green) {{As of|2013|lc=on}}.]]
[[File:Rabies Free Countries and Territories.svg|thumb|upright=1.5|Map of rabies-free countries and territories]]
In 2010, an estimated 26,000 people died from rabies, down from 54,000 in 1990.<ref name=Loz2012>{{cite journal |authors=Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, Abraham J, Adair T, Aggarwal R | title = Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010. | journal = Lancet | volume = 380 | issue = 9859 | pages = 2095–128 | date = Dec 15, 2012 | pmid = 23245604 | doi = 10.1016/S0140-6736(12)61728-0 |display-authors=etal}}</ref> The majority of the deaths occurred in Asia and Africa.<ref name="WHO factsheet" /> [[India]] has the highest rate of human rabies in the world, primarily because of stray dogs,<ref>{{cite news | url=http://www.independent.co.uk/news/science/dead-as-a-dodo-why-scientists-fear-for-the-future-of-of-the-asian-vulture-818059.html | title=Dead as a dodo? Why scientists fear for the future of the Asian vulture | accessdate=2008-10-11 | last=Dugan | first=Emily | date=2008-04-30 | newspaper=The Independent | quote=India now has the highest rate of human rabies in the world. | location=London}}</ref> whose number has greatly increased since a 2001 law forbade the killing of dogs.<ref name="harris">{{cite news |url=http://www.nytimes.com/2012/08/07/world/asia/india-stray-dogs-are-a-menace.html |title=Where Streets Are Thronged With Strays Baring Fangs |newspaper=New York Times |author=Harris, Gardiner |date=6 August 2012 |accessdate=6 August 2012}}</ref> Effective control and treatment of rabies in India is also hindered by a form of [[mass hysteria]] known as [[puppy pregnancy syndrome]] (PPS). Dog bite victims with PPS (both male and female) become convinced that puppies are growing inside them, and often seek help from faith healers rather than from conventional medical services. In cases where the bite was from a rabid dog, this decision can prove fatal. Dr. Nitai Kishore Marik, former district medical officer of West Midnapur, states "I have seen scores of cases of rabies that reached our hospitals very late because of the intervention of faith healers. We could not save those lives."<ref>[http://www.dw.de/medicine-challenges-indian-superstition/a-16489334 Medicine challenges Indian superstition | Asia | DW.DE | 31.12.2012<!-- Bot generated title -->]</ref> An estimated 20,000 people die every year from rabies in India — more than a third of the global toll.<ref name="harris"/> {{As of|2007}}, Vietnam had the second-highest rate, followed by Thailand; in these countries, the virus is primarily transmitted through canines (feral dogs and other wild canine species).<ref name="biomed">{{cite journal | author = Denduangboripant J, Wacharapluesadee S, Lumlertdacha B, Ruankaew N, Hoonsuwan W, Puanghat A, Hemachudha T | title = Transmission dynamics of rabies virus in Thailand: Implications for disease control | journal = BMC Infect Dis | volume = 5 | page = 52 | date = June 2005 | pmid = 15985183 | pmc = 1184074 | doi = 10.1186/1471-2334-5-52 | url = http://www.biomedcentral.com/content/pdf/1471-2334-5-52.pdf | id = 52 }}</ref> Another source of rabies in Asia is the pet boom. In 2006 [[China]] introduced [[one-dog policy|population control]] for dogs in [[Beijing]].<ref>{{cite news |title=China cracks down on rabid dog menace |newspaper=The Toronto Star |url=http://www.thestar.com/News/article/238729 | first=Bill |last=Schiller |date=2007-07-23}}</ref>


In 2010, an estimated 26,000 people died from rabies, down from 54,000 in 1990.<ref name=Loz2012>{{cite journal | vauthors = Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, etal | title = Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010 | journal = Lancet | volume = 380 | issue = 9859 | pages = 2095–2128 | date = December 2012 | pmid = 23245604 | doi = 10.1016/S0140-6736(12)61728-0 | pmc = 10790329 | hdl = 10536/DRO/DU:30050819 | s2cid = 1541253 | url = https://zenodo.org/record/2557786 | hdl-access = free }}</ref> The majority of the deaths occurred in Asia and Africa.<ref name="WHO factsheet" /> {{As of|2015}}, India (approximately 20,847), followed by China (approximately 6,000) and the Democratic Republic of the Congo (5,600), had the most cases.<ref>{{cite journal | vauthors = Hampson K, Coudeville L, Lembo T, Sambo M, Kieffer A, Attlan M, Barrat J, Blanton JD, Briggs DJ, Cleaveland S, Costa P, Freuling CM, Hiby E, Knopf L, Leanes F, Meslin FX, Metlin A, Miranda ME, Müller T, Nel LH, Recuenco S, Rupprecht CE, Schumacher C, Taylor L, Vigilato MA, Zinsstag J, Dushoff J | display-authors = 6 | title = Estimating the global burden of endemic canine rabies | journal = PLOS Neglected Tropical Diseases | volume = 9 | issue = 4 | pages = e0003709 | date = April 2015 | pmid = 25881058 | pmc = 4400070 | doi = 10.1371/journal.pntd.0003709 | doi-access = free }}</ref> A 2015 collaboration between the World Health Organization, World Organization of Animal Health (OIE), Food and Agriculture Organization of the United Nation (FAO), and [[Global Alliance for Rabies Control]] has a goal of eliminating deaths from rabies by 2030.<ref>{{Cite web|url=https://www.who.int/mediacentre/factsheets/fs099/en/ |title=Rabies |website=World Health Organization |access-date=2017-02-23 |url-status=live |archive-url=https://web.archive.org/web/20170215062245/http://www.who.int/mediacentre/factsheets/fs099/en/ |archive-date=15 February 2017 }}</ref>
The rabies virus survives in widespread, varied, rural fauna reservoirs. Despite Australia's official rabies-free status,<ref>[http://www.who.int/rabies/rabies_maps/en/index.html "Essential rabies maps"]. World Health Organization (WHO).</ref> [[Australian bat lyssavirus]] (ABLV), discovered in 1996, is a strain of rabies prevalent in native bat populations. There have been three human cases of ABLV in Australia, all of them fatal.


===India===
In Asia and in parts of the Americas and Africa, dogs remain the principal host. Mandatory vaccination of animals is less effective in rural areas. Especially in developing countries, pets may not be privately kept and their destruction may be unacceptable. Oral vaccines can be safely distributed in baits, a practice that has successfully reduced rabies in rural areas of [[Canada]], [[France]], and the [[United States]]. In [[Montréal]], Quebec, Canada, baits are successfully used on raccoons in the Mont-Royal Park area. Vaccination campaigns may be expensive, and cost-benefit analysis suggests baits may be a cost-effective method of control.<ref>{{cite journal | author = Meltzer MI | title = Assessing the costs and benefits of an oral vaccine for raccoon rabies: a possible model | journal = Emerg Infect Dis | volume = 2 | issue = 4 | pages = 343–9 | date = October–December 1996 | pmid = 8969251 | pmc = 2639934 | doi = 10.3201/eid0204.960411 }}</ref> In [[Ontario]], a dramatic drop in rabies was recorded when an aerial bait-vaccination campaign was launched.<ref name=Grambo>{{cite book|last=Grambo|first=Rebecca L|title=The World of the Fox|year=1995|publisher=Greystone Books|location=Vancouver|isbn=0-87156-377-0|pages=94–5}}</ref>
[[India]] has the highest rate of human rabies in the world, primarily because of stray dogs,<ref>{{cite news |url=https://www.independent.co.uk/news/science/dead-as-a-dodo-why-scientists-fear-for-the-future-of-of-the-asian-vulture-818059.html |title=Dead as a dodo? Why scientists fear for the future of the Asian vulture |access-date=2008-10-11 | vauthors = Dugan E |date=30 April 2008 |newspaper=The Independent |quote=India now has the highest rate of human rabies in the world. |location=London |url-status=dead |archive-url=https://web.archive.org/web/20080517100919/http://www.independent.co.uk/news/science/dead-as-a-dodo-why-scientists-fear-for-the-future-of-of-the-asian-vulture-818059.html |archive-date=17 May 2008}}</ref> whose number has greatly increased since a 2001 law forbade the killing of dogs.<ref name="harris">{{cite news|url=https://www.nytimes.com/2012/08/07/world/asia/india-stray-dogs-are-a-menace.html |title=Where Streets Are Thronged With Strays Baring Fangs |newspaper=New York Times | vauthors = Harris G |date=6 August 2012 |access-date=6 August 2012 |url-status=live |archive-url=https://web.archive.org/web/20120808125223/http://www.nytimes.com//2012/08/07/world/asia/india-stray-dogs-are-a-menace.html |archive-date=8 August 2012 }}</ref> Effective control and treatment of rabies in India is hindered by a form of [[mass hysteria]] known as [[puppy pregnancy syndrome]] (PPS). Dog bite victims with PPS, male as well as female, become convinced that puppies are growing inside them, and often seek help from [[faith healer]]s rather than medical services.<ref>{{cite web | url = http://www.dw.de/medicine-challenges-indian-superstition/a-16489334 | title = Medicine challenges Indian superstition | work = DW.DE | date = 31 December 2012 | archive-url = https://web.archive.org/web/20130131194746/http://www.dw.de/medicine-challenges-indian-superstition/a-16489334 | archive-date=31 January 2013 }}</ref> An estimated 20,000 people die every year from rabies in India, more than a third of the global total.<ref name="harris"/>


===Australia===
Rabies is common among wild animals in the US. [[Bat]]s, [[raccoon]]s, [[skunk]]s and [[fox]]es account for almost all reported cases (98% in 2009). Rabid bats are found in all 48 contiguous states. Other reservoirs are more limited geographically; for example, the raccoon rabies virus variant is only found in a relatively narrow band along the East Coast. Due to a high public awareness of the virus, efforts at vaccination of domestic animals and curtailment of feral populations, and availability of [[postexposure prophylaxis]], incidents of rabies in humans are very rare. A total of 49 cases of the disease was reported in the country between 1995 and 2011; of these, 11 are thought to have been acquired abroad. Almost all domestically acquired cases are attributed to bat bites.<ref>{{cite web|url=http://www.cdc.gov/rabies/location/usa/surveillance/index.html|title=Rabies Surveillance Data in the United States | publisher = [[Centers for Disease Control and Prevention]] }}</ref>
Australia has an official rabies-free status,<ref>{{cite web | url = https://www.who.int/rabies/rabies_maps/en/index.html | title = Essential rabies maps | archive-url = https://web.archive.org/web/20100217210150/http://www.who.int/rabies/rabies_maps/en/index.html | archive-date = 17 February 2010 | work = World Health Organization (WHO) }}</ref> although [[Australian bat lyssavirus]] (ABLV), discovered in 1996, is a rabies-causing virus related to the [[rabies virus]] prevalent in Australian native bat populations.


===United States===
In [[Switzerland]], the disease has been virtually eradicated after scientists placed chicken heads laced with live attenuated vaccine in the [[Swiss Alps]].<ref name="Grambo"/> The foxes of Switzerland, proven to be the main source of rabies in the country, ate the chicken heads and immunized themselves.<ref name="Grambo"/>
[[File:Mm6823e1-F1.gif|thumb|upright=1.5|Rabies cases in humans and domestic animals – United States, 1938–2018]]


Canine-specific rabies has been eradicated in the United States, but rabies is common among wild animals, and an average of 100 dogs become infected from other wildlife each year.<ref>{{cite web|title=CDC – Rabies Surveillance in the U.S. |url=https://www.cdc.gov/rabies/location/usa/surveillance/human_rabies.html |website=www.cdc.gov |access-date=10 April 2017 |url-status=live |archive-url=https://web.archive.org/web/20170118072742/https://www.cdc.gov/rabies/location/usa/surveillance/human_rabies.html |archive-date=18 January 2017 }}</ref><ref>{{cite news|url=https://www.reuters.com/article/us-rabies-usa-idUSN0741162020070907 |title=U.S. free of canine rabies virus | vauthors = Fox M |date=7 September 2007 |newspaper=[[Reuters]] |access-date=11 April 2017 |quote="We don't want to misconstrue that rabies has been eliminated – dog rabies virus has been," CDC rabies expert Dr. Charles Rupprecht told Reuters in a telephone interview. |url-status=live |archive-url=https://web.archive.org/web/20170517072630/https://www.reuters.com/article/us-rabies-usa-idUSN0741162020070907 |archive-date=17 May 2017 }}</ref>
[[Italy]], after being declared rabies-free from 1997 to 2008, has witnessed a reemergence of the disease in wild animals in the [[Triveneto]] regions ([[Trentino-Alto Adige/Südtirol]], [[Veneto]] and [[Friuli-Venezia Giulia]]), due to the spreading of an epidemic in the [[Balcans]] that hit [[Austria]] too. An extensive wild animals vaccination campaign eradicated the virus from Italy again, and it regained the rabies-free country status in 2013, the last reported case of rabies being reported in a red fox in early 2011.<ref>http://www.izsvenezie.com/rabies-in-africa-the-resolab-network/</ref><ref>http://www.quotidianosanita.it/governo-e-parlamento/articolo.php?articolo_id=13650</ref>

High public awareness of the virus, efforts at vaccination of domestic animals and curtailment of feral populations, and availability of [[postexposure prophylaxis]] have made rabies very rare in humans in the United States. From 1960 to 2018, a total of 125 such cases were reported in the United States; of them, 36 (28%) were attributed to dog bites suffered during international travel.<ref name=MMWR2019/> Among the 89 infections acquired in the United States, 62 (70%) were attributed to bats.<ref name=MMWR2019>{{cite journal | vauthors = Pieracci EG, Pearson CM, Wallace RM, Blanton JD, Whitehouse ER, Ma X, Stauffer K, Chipman RB, Olson V | display-authors = 6 | title = Vital Signs: Trends in Human Rabies Deaths and Exposures – United States, 1938–2018 | journal = MMWR. Morbidity and Mortality Weekly Report | volume = 68 | issue = 23 | pages = 524–28 | date = June 2019 | pmid = 31194721 | pmc = 6613553 | doi = 10.15585/mmwr.mm6823e1 }}</ref> The most recent rabies death in the United States was in November 2021, where a Texas child was bitten by a bat in late August 2021 but his parents failed to get him treatment. He died less than three months later.<ref>{{Cite journal |last=Blackburn |first=Dawn |date=2022 |title=Human Rabies – Texas, 2021 |journal=MMWR. Morbidity and Mortality Weekly Report |volume=71 |issue=49 |pages=1547–49 |doi=10.15585/mmwr.mm7149a2 |pmid=36480462 |pmc=9762899 |doi-access=free }}</ref>

===Europe===
Either no or very few cases of rabies are reported each year in Europe; cases are contracted both during travel and in Europe.<ref>{{cite web|url=http://ecdc.europa.eu/sites/portal/files/documents/AER_for_2015-rabies.pdf|title= Surveillance Report - Annual Epidemiological Report for 2015 – Rabies | publisher = European Centre for Disease Prevention and Control (ECDC) | access-date=30 August 2018}}</ref>

In Switzerland the disease was virtually eliminated after scientists placed chicken heads laced with live [[attenuated vaccine]] in the [[Swiss Alps]].<ref name="Grambo"/> Foxes, proven to be the main source of rabies in the country, ate the chicken heads and became immunized.<ref name="Grambo"/><ref name="thefactsource.com">{{cite web |url=https://thefactsource.com/switzerland-rabies-epidemic-air-dropping-chicken-heads/ |title=Switzerland ended rabies epidemic by air dropping vaccinated chicken heads from helicopters | work = thefactsource.com |access-date=2019-12-10|date=20 November 2019 }}</ref>

Italy, after being declared rabies-free from 1997 to 2008, has witnessed a reemergence of the disease in wild animals in the [[Triveneto]] regions ([[Trentino-Alto Adige/Südtirol]], [[Veneto]] and [[Friuli-Venezia Giulia]]) due to the spreading of an epidemic in the [[Balkans]] that also affected Austria. An extensive wild animal vaccination campaign eliminated the virus from Italy again, and it regained the rabies-free country status in 2013, the last reported case of rabies being reported in a red fox in early 2011.<ref>{{cite web|url=http://www.izsvenezie.com/rabies-in-africa-the-resolab-network/ |title=Rabies in Africa: The RESOLAB network |date=29 June 2015 |access-date=2016-04-18 |url-status=live |archive-url=https://web.archive.org/web/20160803081821/http://www.izsvenezie.com/rabies-in-africa-the-resolab-network/ |archive-date=3 August 2016 }}</ref><ref>{{cite web|url=http://www.quotidianosanita.it/governo-e-parlamento/articolo.php?articolo_id=13650 |title=Ministero della Salute: "Italia è indenne dalla rabbia". l'Ultimo caso nel 2011 – Quotidiano Sanità |access-date=2016-04-18 |url-status=live |archive-url=https://web.archive.org/web/20160603183359/http://www.quotidianosanita.it/governo-e-parlamento/articolo.php?articolo_id=13650 |archive-date=3 June 2016 }}</ref>

The United Kingdom has been free of rabies since the early 20th century except for a [[European bat 2 lyssavirus|rabies-like virus (EBLV-2)]] in a few [[Daubenton's bat]]s. There has been one fatal case of EBLV-2 transmission to a human.<ref>{{Cite news | url=http://news.bbc.co.uk/1/hi/scotland/2509375.stm | title=Man dies from rabies after bat bite| date=2002-11-24 | work = BBC News }}</ref> There have been four deaths from rabies, transmitted abroad by dog bites, since 2000. The last infection in the UK occurred in 1922, and the last death from indigenous rabies was in 1902.<ref>{{cite web |url=https://www.nhs.uk/conditions/rabies/ |title=Rabies|website=NHS |date=23 February 2017 |access-date= 30 August 2018}}</ref><ref>{{cite news |url=https://www.bbc.co.uk/news/health-18188682 |title=Q&A: Rabies|website=BBC News |date=17 April 2015 |access-date= 30 August 2018}}</ref>

Sweden and mainland Norway have been free of rabies since 1886.<ref>{{cite journal | vauthors = Mehnert E |title=Rabies och bekämpningsåtgärder i 1800-talets Sverige |journal=Svensk veterinärtidning | trans-journal = Swedish veterinary magazine |date=1988 |volume=1988 |number=40 |pages=277–288 |trans-title=Rabies and remedies in 19th century Sweden |publisher=Sveriges veterinärförbund |oclc=939018709 |language=Swedish}}</ref> Bat rabies antibodies (but not the virus) have been found in bats.<ref>{{cite web |title=Fladdermusrabies | trans-title = Bat rabies |url=https://www.sva.se/amnesomraden/djursjukdomar-a-o/fladdermusrabies/ | work = Statens Veterinärmedicinska Anstalt | trans-work = State Veterinary Medical Institution |access-date=2022-10-28 |language=Swedish}}</ref> On Svalbard, animals can cross the arctic ice from Greenland or Russia.

=== Mexico ===
Mexico was certified by the [[World Health Organization]] as being free of dog-transmitted rabies in 2019 because no case of dog-human transmission had been recorded in two years.<ref>{{cite web|url=https://www.bbc.com/mundo/noticias-50390407|title=Cómo México se convirtió en el primer país del mundo libre de rabia transmitida por perros | trans-title = How Mexico became the first country in the world free of rabies transmitted by dogs | language = es |website =BBC News|date=12 November 2019|access-date=12 November 2019}}</ref>

=== Asian countries ===
Despite rabies being preventable and the many successes of the years from countries such as North America, South Korea and Western Europe, Rabies remains endemic in many Southeast Asian countries including [[Cambodia]], [[Bangladesh]], [[Bhutan]], [[North Korea]], [[India]], [[Indonesia]], [[Myanmar]] [[Nepal]], [[Sri Lanka]], and [[Thailand]].<ref>{{cite web |title=Rabies in the South-East Asia Region |date=2024 |publisher=World Health Organization |url=https://www.who.int/southeastasia/health-topics/rabies |quote=In the South-East Asia Region, rabies is endemic in Nepal, Sri Lanka and Thailand}}</ref> Half the global rabies deaths occur in southeast Asia - approx. 26,000 per year.<ref name=Hicks23>{{cite web |first=R. |last=Hicks |title=Rabies is Spreading in South Asia Fueled by Inequality and Neglect |date=3 November 2023 |publisher=Eco‑Business |url=https://www.eco-business.com/news/rabies-is-spreading-in-southeast-asia-fuelled-by-inequality-and-neglect/ }}</ref>

Much of what prevents Asia from implementing the same measures as other countries is [[Rabies vaccine|cost]].<ref>{{cite journal |vauthors=Abbas SS, Kakkar M |title=Rabies control in India: a need to close the gap between research and policy |journal=Bull World Health Organ |volume=93 |issue=2 |pages=131–32 |date=February 2015 |pmid=25883407 |pmc=4339964 |doi=10.2471/BLT.14.140723 |doi-broken-date=22 November 2024 }}</ref> Treating wild canines is the primary means of preventing rabies, however it costs 10 times more than treating individuals as they come with bites, and research also increases cost. As a result, India and other surrounding countries are unable to apply many preventative measures because of financial restrictions.<ref>{{cite journal |vauthors=Chowdhury FR, Basher A, Amin MR, Hassan N, Patwary MI |title=Rabies in South Asia: fighting for elimination |journal=Recent Pat Anti-Infect Drug Discov |volume=10 |issue=1 |pages=30–34 |date=2015 |pmid=25858305 |doi=10.2174/1574891x10666150410130024 }}</ref>

==== Thailand ====
In 2013 human rabies was nearly eradicated in the state of Thailand after new measures were put into place requiring the vaccination of all domestic dogs as well as programs seeking to vaccinate wild dogs and large animals.<ref name=Thanap21>{{cite journal |vauthors=Thanapongtharm W, Suwanpakdee S, Chumkaeo A, Gilbert M, Wiratsudakul A |title=Current characteristics of animal rabies cases in Thailand and relevant risk factors identified by a spatial modeling approach |journal=PLOS Negl Trop Dis |volume=15 |issue=12 |pages=e0009980 |date=December 2021 |pmid=34851953 |pmc=8668119 |doi=10.1371/journal.pntd.0009980 |doi-access=free}}</ref> However, neighboring countries unable to afford rabies control measures – Cambodia, Laos, and [[Myanmar]] – allowed infected animals to continue to pass the border and infect the Thai population, leading to ~100 cases a year.<ref>{{cite web |author=CDC |title=Thailand |date=2024 |work=Travelers' health |publisher=Center for Disease Control and Prevention |url=https://wwwnc.cdc.gov/travel/destinations/traveler/none/thailand |quote=Rabid dogs are commonly found,rabies treatment is often available.&text=Since children are more likely,for children traveling to Thailand}}</ref> These areas around the border are called Rabies Red areas and are where Thailand continuously struggles with eradication and will do so until the surrounding countries eliminate the virus.<ref name=Thanap21/>

Thailand has the resources and medicine necessary to tackle rabies such as implementing regulations that require all children to receive a rabies vaccination before attending schools and having clinics available for those bit or scratched by a possible rabid animal. However, individual choice is still a factor, and 10 people per year die out of refusal to seek treatment.<ref>{{cite web |author=CDC |title=Thailand |date=2024 |work=Travelers' health |publisher=Center for Disease Control and Prevention |url=https://wwwnc.cdc.gov/travel/destinations/traveler/none/thailand |quote=Dogs infected with rabies are sometimes found in Thailand. If rabies exposures occur while in Thailand, rabies vaccines are typically available throughout most of the country.}}</ref>

==== Cambodia ====
Cambodia has approximately 800 cases of human rabies per year, making it one of the top countries in human rabies incidences.<ref name=Baron22>{{cite journal |vauthors=Baron JN, Chevalier V, Ly S, Duong V, Dussart P, Fontenille D, Peng YS, Martínez-López B |title=Accessibility to rabies centers and human rabies post-exposure prophylaxis rates in Cambodia: A Bayesian spatio-temporal analysis to identify optimal locations for future centers |journal=PLOS Negl Trop Dis |volume=16 |issue=6 |pages=e0010494 |date=June 2022 |pmid=35771752 |pmc=9491732 |doi=10.1371/journal.pntd.0010494 |doi-access=free}}</ref> Much of this falls on their lack of animal care; Cambodia has hundreds of thousands of animals infected with rabies, another global high, yet little surveillance of said animals and few laws requiring pets and other household animals to be vaccinated.<ref name=Baron22/> In recent years [[Cambodia]] has improved significantly in their human rabies medical practices, with clinics all over the countries being made with treatments and vaccination on hand as well as rabies-related education in school classes.<ref>{{cite web |author=CDC |title=Cambodia |date=2024 |work=Travelers' Health |publisher=Center for Disease Control |url=https://wwwnc.cdc.gov/travel/destinations/traveler/none/cambodia |quote=Dogs infected with rabies are commonly found in Cambodia. If rabies exposures occur while in Cambodia, rabies vaccines are typically available throughout most of the country.}}</ref> However, it is still lacking in terms of animal surveillance and treatment which leads to bleeding into surrounding countries.<ref name=Hicks23/>


==History==
==History==
Rabies has been known since around 2000 BC.<ref>{{cite journal | vauthors = Adamson PB | title = The spread of rabies into Europe and the probable origin of this disease in antiquity | journal = Journal of the Royal Asiatic Society of Great Britain & Ireland. Royal Asiatic Society of Great Britain and Ireland | volume = 109 | issue = 2 | pages = 140–44 | year = 1977 | pmid = 11632333 | doi = 10.1017/S0035869X00133829 | jstor = 25210880 | s2cid = 27354751 }}</ref> The first written record of rabies is in the [[Mesopotamia]]n [[Laws of Eshnunna|Codex of Eshnunna]] ({{circa|1930 BC}}), which dictates that the owner of a dog showing symptoms of rabies should take preventive measures against bites. If another person were<!--subjunctive--> bitten by a rabid dog and later died, the owner was heavily fined.<ref>{{cite book | vauthors = Dunlop RH, Williams DJ | title = Veterinary Medicine: An Illustrated History | publisher = Mosby | year= 1996 | isbn=978-0-8016-3209-9 }}</ref>
[[File:Middle Ages rabid dog.jpg|thumb|250px|A [[woodcut]] from the [[Middle Ages]] showing a rabid dog.]]

Rabies has been known since around 2000 B.C.<ref>{{cite journal | author = Adamson PB | title = The spread of rabies into Europe and the probable origin of this disease in antiquity | journal = The Journal of the Royal Asiatic Society of Great Britain and Ireland | volume = 2 | issue = 2 | pages = 140–4 | year = 1977 | pmid = 11632333 | doi = 10.1017/S0035869X00133829 | jstor = 25210880 }}</ref> The first written record of rabies is in the Mesopotamian [[Laws of Eshnunna|Codex of Eshnunna]] (circa 1930 BC), which dictates that the owner of a dog showing symptoms of rabies should take preventive measure against bites. If another person were<!--subjunctive--> bitten by a rabid dog and later died, the owner was heavily fined.<ref>{{cite book | last = Dunlop | first = Robert H |author2=Williams, David J | title = Veterinary Medicine: An Illustrated History | publisher = Mosby | year= 1996 | isbn=0-8016-3209-9 }}</ref>
In ancient Greece, rabies was supposed to be caused by [[Lyssa]], the spirit of mad rage.<ref>{{Cite web|title=Rabies: an ancient disease|url=https://www.gob.mx/salud/articulos/56248 | work = Gobierno de México }}</ref>

Ineffective folk remedies abounded in the medical literature of the ancient world. The physician [[Scribonius Largus]] prescribed a poultice of cloth and hyena skin; [[Antaeus (physician)|Antaeus]] recommended a preparation made from the skull of a hanged man.<ref>{{cite book| vauthors = Barrett AD, Stanberry LR |title=Vaccines for Biodefense and Emerging and Neglected Diseases |publisher=[[Academic Press]] |date=2009 |page=612 |url=https://books.google.com/books?id=6Nu058ZNa1MC |isbn=978-0-08-091902-7 |access-date=2016-01-08 |url-status=live |archive-url=https://web.archive.org/web/20160428020308/https://books.google.com/books?id=6Nu058ZNa1MC |archive-date=28 April 2016 }}</ref>

Rabies appears to have originated in the Old World, the first [[epizootic]] in the New World occurring in Boston in 1768.<ref>{{cite book | vauthors = Baer GM | title = The Natural History of Rabies | edition = 2nd | publisher = CRC Press | date = 1991 | isbn = 978-0-8493-6760-1 | url = https://books.google.com/books?id=dw8qW6jcfWUC&q=history+of+rabies&pg=PA1 | quote = The first major epizootic in North America was reported in 1768, continuing until 1771 when foxes and dogs carried the disease to swine and domestic animals. The malady was so unusual that it was reported as a new disease }}</ref>


Rabies was considered a scourge for its prevalence in the 19th century. In France and Belgium, where [[Hubertus|Saint Hubert]] was venerated, the "[[St Hubert's Key]]" was heated and applied to cauterize the wound. By an application of [[magical thinking]], dogs were branded with the key in hopes of protecting them from rabies.
Ineffective folk remedies abounded in the medical literature of the ancient world. The physician [[Scribonius Largus]] prescribed a poultice of cloth and hyena skin; [[Antaeus (physician)|Antaeus]] recommended a preparation made from the skull of a hanged man.<ref>{{cite book | last =Barrett | first =Alan D.T. | last2 =Stanberry | first2 =Lawrence R. | title =Vaccines for Biodefense and Emerging and Neglected Diseases | publisher =[[Academic Press]] | date =2009 |page=612 | language =English | url =https://books.google.com/books?id=6Nu058ZNa1MC | isbn = 9780080919027 | accessdate=2016-01-08}}</ref>


It was not uncommon for a person bitten by a dog merely suspected of being rabid to commit suicide or to be killed by others.<ref name="Rotivel"/>
Rabies appears to have originated in the Old World, the first [[epizootic]] in the New World occurring in Boston in 1768.<ref>[https://books.google.com/books?hl=en&lr=&id=dw8qW6jcfWUC&oi=fnd&pg=PA1&dq=history+of+rabies&ots=CmyU5g3ZlE&sig=Vm4Mlc37hmzTzpYalg95Ft1Len0#v=onepage&q=history%20of%20rabies&f=false The Natural History of Rabies]<br/>The first major epizootic in North America was reported in 1768, continuing until 1771 when foxes and dogs carried the disease to swine and domestic animals. The malady was so unusual that it was reported as a new disease</ref> It spread from there, over the next few years, to various other states, as well as to the French West Indies, eventually becoming common all across North America.


In ancient times the attachment of the tongue (the [[lingual frenulum]], a mucous membrane) was cut and removed, as this was where rabies was thought to originate. This practice ceased with the discovery of the actual cause of rabies.<ref name="Baer1991">{{cite book| vauthors = Baer G |title=The Natural History of Rabies|url=https://books.google.com/books?id=dw8qW6jcfWUC&q=rabies+history&pg=PA1|publisher=CRC Press|access-date=31 October 2011|isbn=978-0-8493-6760-1|year=1991}}</ref> Louis Pasteur's 1885 nerve tissue vaccine was successful, and was progressively improved to reduce often severe side-effects.<ref name=Giesen2015/>
Rabies was considered a scourge for its prevalence in the 19th century. In France and Belgium, where [[Hubertus|Saint Hubert]] was venerated, the "[[St Hubert's Key]]" was heated and applied to cauterize the wound. By an application of [[magical thinking]], dogs were branded with the key in hopes of protecting them from rabies. The fear of rabies was almost irrational, due to the insignificant number of vectors (mostly rabid dogs) and the absence of any efficacious treatment. It was not uncommon for a person bitten by a dog but merely suspected of being rabid, to commit suicide or to be killed by others.<ref name="Rotivel"/> This gave [[Louis Pasteur]] ample opportunity to test postexposure treatments from 1885.<ref name=Giesen2015/>
In ancient times, the attachment of the tongue (the [[lingual frenulum]], a mucous membrane) was cut and removed as this is where rabies was thought to originate. This practice ceased with the discovery of the actual cause of rabies.<ref>{{cite book|last=Baer|first=George|title=The Natural History of Rabies|url=https://books.google.com/?id=dw8qW6jcfWUC&pg=PA1&dq=rabies+history#v=onepage&q&f=false|publisher=CRC Press|accessdate=31 October 2011|isbn=9780849367601|year=1991}}</ref>


In modern times, the fear of rabies has not diminished, and the disease and its symptoms, particularly agitation has served as an [[Rabies in popular culture|inspiration for several works]] of [[zombie]] or similarly-themed fiction, often portraying rabies as having mutated into a stronger virus which fills humans with murderous rage or uncurable illness, bringing about a devastating, widespread pandemic.<ref>{{cite web|last1=Than|first1=Ker|title="Zombie Virus" Possible via Rabies-Flu Hybrid?|url=http://news.nationalgeographic.com/news/2010/10/1001027-rabies-influenza-zombie-virus-science/|website=National Geographic|publisher=National Geographic|accessdate=13 September 2015}}</ref>
In modern times, the fear of rabies has not diminished, and the disease and its symptoms, particularly agitation, have served as an [[Rabies in popular culture|inspiration for several works]] of [[zombie]] or similarly themed fiction, often portraying rabies as having mutated into a stronger virus which fills humans with murderous rage or incurable illness, bringing about a devastating, widespread pandemic.<ref>{{cite web| vauthors = Than K |title='Zombie Virus' Possible via Rabies-Flu Hybrid? |url=http://news.nationalgeographic.com/news/2010/10/1001027-rabies-influenza-zombie-virus-science/ |website=National Geographic |access-date=13 September 2015 |url-status=dead |archive-url=https://web.archive.org/web/20150913232030/http://news.nationalgeographic.com/news/2010/10/1001027-rabies-influenza-zombie-virus-science/ |archive-date=13 September 2015 |date=27 October 2010 }}</ref>


<gallery widths="200" heights="200">
===Etymology===
File:Cantigas de Santa Maria-275-5.jpg|Miniature of the [[Cantigas de Santa Maria|''Cantiga'']] #275 depicting two [[Knights Hospitaller|monks hospitaller]] with rabies being carried before St. Mary of Terena<ref>{{Cite book|pages=172–3|year=2002|title=La asistencia a los enfermos en Castilla en la Baja Edad Media| vauthors = Santo Tomás Pérez M |isbn=84-688-3906-X|url=http://www.cervantesvirtual.com/descargaPdf/la-asistencia-a-los-enfermos-en-castilla-en-la-baja-edad-media--0/|publisher=[[University of Valladolid|Universidad de Valladolid]]|via=[[Biblioteca Virtual Miguel de Cervantes]]}}</ref>
The term is derived from the [[Latin]] ''rabies'', "madness".<ref name="SimpsonDP1979">{{cite book | author = Simpson DP | title = Cassell's Latin Dictionary | publisher = Cassell | year = 1979 | edition = 5 | location = London | page = 883 | isbn = 0-304-52257-0 }}</ref> This, in turn, may be related to the Sanskrit ''rabhas'', "to do violence". The Greeks derived the word ''lyssa'', from ''lud'' or "violent"; this root is used in the name of the genus of rabies ''Lyssavirus''.<ref name="Rotivel">{{cite web
File:Middle Ages rabid dog.jpg|A [[woodcut]] from the [[Middle Ages]] showing a rabid dog
| first = Yolande
File:Sauvages de la Croix, François Boissier de – Dissertation sur la nature et la cause de la Rage, 1777 – BEIC 3001126.jpg|[[François Boissier de Sauvages de Lacroix]], ''Della natura e causa della rabbia'' (''Dissertation sur la nature et la cause de la Rage''), 1777
| last = Rotivel
File:Medieval rabies folio.jpg|alt=An ancient folio from the medieval times depicting a rabid dog biting a man. circa 1224|An Arabic [[folio]] from the [[Middle Ages|medieval]] times depicting a rabid [[dog]] biting a man, c. [[1224]]
| title=Introduction
</gallery>
| url=https://fas.org/ahead/docs/rabies.htm
| publisher=Federation of American Scientists
| accessdate = 2009-04-25
}}</ref>


==Other animals==
==Other animals==
{{Main|Rabies in animals}}
{{Main|Rabies in animals}}
[[File:PHIL 2184.png|thumb|Two dogs with the paralytic, or dumb, form of rabies]]
Rabies is infectious to [[mammal]]s; three stages are recognized. The first stage is a one- to three-day period characterized by behavioral changes and is known as the [[Prodrome|prodromal stage]]. The second is the excitative stage, which lasts three to four days. This stage is often known as "furious rabies" for the tendency of the affected animal to be hyper-reactive to external stimuli and bite at anything near. The third is the paralytic stage and is caused by damage to [[motor neuron]]s. Incoordination is seen, owing to rear limb [[paralysis]], and drooling and difficulty swallowing is caused by paralysis of facial and throat muscles. Death is usually caused by [[respiratory arrest]].<ref name=Ettinger_1995>{{cite book|author=Ettinger, Stephen J |author2=Feldman, Edward C |title=Textbook of Veterinary Internal Medicine|edition=4th|publisher=W.B. Saunders Company|year=1995|isbn=0-7216-6795-3}}</ref>


Rabies is infectious to [[mammal]]s; three stages of central nervous system infection are recognized. The clinical course is often shorter in animals than in humans, but result in similar symptoms and almost always death. The first stage is a one- to three-day period characterized by behavioral changes and is known as the [[Prodrome|prodromal stage]]. The second is the excitative stage, which lasts three to four days. This stage is often known as "furious rabies" for the tendency of the affected animal to be hyper-reactive to external stimuli and bite or attack anything near. In some cases, animals skip the excitative stage and develop paralysis, as in the third phase; the paralytic phase. This stage develops by damage to [[motor neuron]]s. Incoordination is seen, owing to rear limb [[paralysis]], and drooling and difficulty swallowing is caused by paralysis of facial and throat muscles. Death is usually caused by [[respiratory arrest]].<ref name=Ettinger_1995>{{cite book| vauthors = Ettinger SJ, Feldman EC |title=Textbook of Veterinary Internal Medicine|edition=4th|publisher=W.B. Saunders Company|year=1995|isbn=978-0-7216-6795-9}}</ref>
==Research==
Rabies has the advantage over other [[pseudotyping]] methods for gene delivery in that the cell-targeting ([[tissue tropism]]) is more specific for difficult-to-reach sites, such as the [[central nervous system]] without invasive delivery methods, as well as being capable of [[retrograde tracing]] (i.e., going against the flow of information at [[synapses]]) in neuronal circuits.<ref>{{cite journal | author = Carpentier DC, Vevis K, Trabalza A, Georgiadis C, Ellison SM, Asfahani RI, Mazarakis ND | title = Enhanced pseudotyping efficiency of HIV-1 lentiviral vectors by a rabies/vesicular stomatitis virus chimeric envelope glycoprotein | journal = Gene Therapy | volume = 19 | issue = 7 | pages = 761–74 | date = 8 September 2011 | pmid = 21900965 | doi = 10.1038/gt.2011.124 }}</ref>


== See also ==
Recent evidence indicates artificially increasing the permeability of the [[blood–brain barrier]], which normally does not allow most immune cells across, promotes viral clearance.<ref name="Roy_2007b">{{cite journal | author = Roy A, Hooper DC | title = Lethal silver-haired bat rabies virus infection can be prevented by opening the blood–brain barrier | journal = J. Virol. | volume = 81 | issue = 15 | pages = 7993–8 | year = 2007 | pmid = 17507463 | pmc = 1951307 | doi = 10.1128/JVI.00710-07 }}</ref><ref name="Roy_2007a">{{cite journal | author = Roy A, Phares TW, Koprowski H, Hooper DC | title = Failure to open the blood–brain barrier and deliver immune effectors to central nervous system tissues leads to the lethal outcome of silver-haired bat rabies virus infection | journal = J. Virol. | volume = 81 | issue = 3 | pages = 1110–8 | year = 2007 | pmid = 17108029 | pmc = 1797506 | doi = 10.1128/JVI.01964-06 }}</ref>
* {{Portal inline|Viruses}}
* [[Eradication of infectious diseases]]
* [[Madstone (folklore)]]
* [[Rabies in Haiti]]


==See also==
== References ==
{{Portal|Viruses}}
{{Reflist}}
<!--------------------
DEFAULT SHORT: ALPHA ARTICLE TITLE
-------------------->
* [[Global Alliance for Rabies Control]]
* [[Neglected tropical diseases]]
* [[Rabies in popular culture]]
* [[World Rabies Day]]

==References==
{{Reflist|30em}}


==Further reading==
==Further reading==
*Pankhurst, Richard. "The history and traditional treatment of rabies in Ethiopia." ''Medical History'' 14, no. 4 (1970): 378–389.
*{{cite book|title=The Natural History of Rabies|year=1991|publisher=CRC Press|isbn=978-0849367601|url=https://books.google.com/books/about/The_Natural_History_of_Rabies.html?id=dw8qW6jcfWUC|edition=2|editor=George M. Baer}}
*{{cite book|last=Jackson|first=Alan C.|title=Rabies, Second Edition: Scientific Basis of the Disease and Its Management|year=2007|publisher=Academic Press|location=London, UK|isbn=978-0123693662|url=https://books.google.com/books/about/Rabies.html?id=C-U1LFK5zagC|author2=William H. Wunner }}
*{{cite news|last=Murphy|first=Monica|title=Undead: The Rabies Virus Remains a Medical Mystery|url=http://www.wired.com/wiredscience/2012/07/ff_rabies/all/?utm_source=Contextly&utm_medium=RelatedLinks&utm_campaign=Previous|accessdate=12 August 2012|newspaper=Wired|date=26 July 2012|author2=Bill Wasik}}
*{{cite web|title=Rabies|url=http://www.cdc.gov/rabies/index.html|publisher=Centers for Disease Control and Prevention|accessdate=12 August 2012|date=2 August 2012}}
*{{cite book|last=Wasik|first=Bill|title=Rabid: A Cultural History of the World's Most Diabolical Virus|year=2012|publisher=Viking|isbn=978-0670023738|url=https://books.google.com/books/about/Rabid.html?id=i8j30cXPKj8C|author2=Monica Murphy }}
*{{cite book|author=George M. Baer|title=THE NATURAL HISTORY OF RABIES|url=https://books.google.com/books?id=PAcecT-07lsC&pg=PA335|date=2 December 2012|publisher=Elsevier|isbn=978-0-323-13970-0|page=335}}
*{{cite journal|title=Latent Rabies|journal=N Engl J Med|date=June 27, 1991|volume=324|pages=1890–1891|doi=10.1056/NEJM199106273242611}}


==External links==
== External links ==
{{offline|med}}
{{Commons category|Rabies}}
{{Commons category|Rabies}}
{{EB1911 poster|Hydrophobia}}
{{Wiktionary}}
{{Wiktionary}}
<!--------------------
<!--------------------
DEFAULT SHORT: ALPHA WEBPAGE TITLE, WEBISTE TITLE
DEFAULT SHORT: ALPHA WEBPAGE TITLE, WEBSITE TITLE
-------------------->
-------------------->
* {{cite web|title=Rabies|url=https://www.cdc.gov/rabies/index.html|publisher=Centers for Disease Control and Prevention|access-date=12 August 2012}}
* {{DMOZ|Health/Conditions_and_Diseases/Infectious_Diseases/Viral/Rabies/}}
* [http://www.viprbrc.org/brc/home.do?decorator=rhabdo Virus Pathogen Database and Analysis Resource (ViPR): Rhabdoviridae]
* {{cite web | url = https://www.viprbrc.org/brc/search_landing.spg?decorator=rhabdo | work = Virus Pathogen Database and Analysis Resource (ViPR) | title = Rhabdoviridae }}
* {{cite web | url = http://www.oie.int/en/animal-health-in-the-world/rabies-portal/ | title = OIE's Rabies Portal | archive-url = https://web.archive.org/web/20200813050639/https://www.oie.int/en/animal-health-in-the-world/rabies-portal/ | archive-date = 13 August 2020 }}
* [http://www.worldrabiesday.org/ World Rabies Day]
* {{cite web | vauthors = Karuturi S | date = 20 June 2009 | url = http://www.doctorshangout.com/forum/topics/videos-of-aerophobia-and | title = Videos of Aerophobia and Hydrophobia in a suspected Rabies case | work = Doctors Hangout | archive-url = https://web.archive.org/web/20160402053228/http://www.doctorshangout.com/forum/topics/videos-of-aerophobia-and | archive-date = 2 April 2016 }}
* [http://www.oie.int/en/animal-health-in-the-world/rabies-portal/ OIE's Rabies Portal]
* {{cite web |title=''Rabies virus'' |work=NCBI Taxonomy Browser |url=https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=11292 |id=11292}}
* [http://www.doctorshangout.com/forum/topics/videos-of-aerophobia-and Aerophobia and Hydrophobia in Rabies Videos]
*{{cite web |title=''Rabies virus'' |work=NCBI Taxonomy Browser |url=http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=11292 |id=11292}}


{{Medical condition classification and resources
| DiseasesDB = 11148
| ICD11 = {{ICD11|1C82}}
| ICD10 = {{ICD10|A|82||a|82}}
| ICD9 = {{ICD9|071}}
| ICDO =
| OMIM =
| MedlinePlus = 001334
| eMedicineSubj = med
| eMedicineTopic = 1374
| eMedicine_mult = {{eMedicine2|eerg|493}} {{eMedicine2|ped|1974}}
| MeshID = D011818
|Orphanet=770
}}
{{Rabies}}
{{Viral diseases}}
{{Viral diseases}}
{{Zoonotic viral diseases}}
{{Zoonotic viral diseases}}
{{Domestic cat}}
{{Domestic cat}}
{{Domestic dog}}
{{Domestic dog}}

{{Authority control}}
{{Authority control}}


[[Category:Rabies| ]]
[[Category:Articles containing video clips]]
[[Category:Bat diseases]]
[[Category:Cat diseases]]
[[Category:Cat diseases]]
[[Category:Dog diseases]]
[[Category:Dog diseases]]
[[Category:Wildlife diseases]]
[[Category:Neurological disorders]]
[[Category:Neurological disorders]]
[[Category:Rabies| ]]
[[Category:Wikipedia infectious disease articles ready to translate]]
[[Category:Rodent-carried diseases]]
[[Category:Slow virus diseases]]
[[Category:Tropical diseases]]
[[Category:Vaccine-preventable diseases]]
[[Category:Viral encephalitis]]
[[Category:Viral encephalitis]]
[[Category:Viral infections of the central nervous system]]
[[Category:Viral infections of the central nervous system]]
[[Category:Wikipedia medicine articles ready to translate]]
[[Category:Zoonoses]]
[[Category:Zoonoses]]
[[Category:RTT]]
[[Category:Infectious diseases]]
[[Category:Mammal diseases]]

Latest revision as of 03:20, 7 December 2024

Rabies
A man suffering from rabies tied to a hospital bed.
A man with rabies, 1958
SpecialtyInfectious disease
SymptomsFever, extreme aversion to water, confusion, excessive salivary secretion, hallucinations, disrupted sleep, paralysis, coma,[1][2] hyperactivity, headache, nausea, vomiting, anxiety[3]
CausesRabies virus, Australian bat lyssavirus[4]
PreventionRabies vaccine, animal control, rabies immunoglobulin[1]
TreatmentSupportive care
MedicationIncurable[5]
Prognosis~100% fatal after onset of symptoms[1]
Deaths59,000 per year worldwide[6]

Rabies is a viral disease that causes encephalitis in humans and other mammals.[1] It was historically referred to as hydrophobia ("fear of water") because its victims would panic when offered liquids to drink. Early symptoms can include fever and abnormal sensations at the site of exposure.[1] These symptoms are followed by one or more of the following symptoms: nausea, vomiting, violent movements, uncontrolled excitement, fear of water, an inability to move parts of the body, confusion, and loss of consciousness.[1][7][8][9] Once symptoms appear, the result is virtually always death.[1] The time period between contracting the disease and the start of symptoms is usually one to three months but can vary from less than one week to more than one year.[1] The time depends on the distance the virus must travel along peripheral nerves to reach the central nervous system.[10]

Rabies is caused by lyssaviruses, including the rabies virus and Australian bat lyssavirus.[4] It is spread when an infected animal bites or scratches a human or other animals.[1] Saliva from an infected animal can also transmit rabies if the saliva comes into contact with the eyes, mouth, or nose.[1] Globally, dogs are the most common animal involved.[1] In countries where dogs commonly have the disease, more than 99% of rabies cases in humans are the direct result of dog bites.[11] In the Americas, bat bites are the most common source of rabies infections in humans, and less than 5% of cases are from dogs.[1][11] Rodents are very rarely infected with rabies.[11] The disease can be diagnosed only after the start of symptoms.[1]

Animal control and vaccination programs have decreased the risk of rabies from dogs in a number of regions of the world.[1] Immunizing people before they are exposed is recommended for those at high risk, including those who work with bats or who spend prolonged periods in areas of the world where rabies is common.[1] In people who have been exposed to rabies, the rabies vaccine and sometimes rabies immunoglobulin are effective in preventing the disease if the person receives the treatment before the start of rabies symptoms.[1] Washing bites and scratches for 15 minutes with soap and water, povidone-iodine, or detergent may reduce the number of viral particles and may be somewhat effective at preventing transmission.[1][12] As of 2016, only fourteen people were documented to have survived a rabies infection after showing symptoms.[13][14] However, research conducted in 2010 among a population of people in Peru with a self-reported history of one or more bites from vampire bats (commonly infected with rabies), found that out of 73 individuals reporting previous bat bites, seven people had rabies virus-neutralizing antibodies (rVNA).[15] Since only one member of this group reported prior vaccination for rabies, the findings of the research suggest previously undocumented cases of infection and viral replication followed by an abortive infection. This could indicate that people may have an exposure to the virus without treatment and develop natural antibodies as a result.

Rabies causes about 59,000 deaths worldwide per year,[6] about 40% of which are in children under the age of 15.[16] More than 95% of human deaths from rabies occur in Africa and Asia.[1] Rabies is present in more than 150 countries and on all continents but Antarctica.[1] More than 3 billion people live in regions of the world where rabies occurs.[1] A number of countries, including Australia and Japan, as well as much of Western Europe, do not have rabies among dogs.[17][18] Many Pacific islands do not have rabies at all.[18] It is classified as a neglected tropical disease.[19]

The global cost of rabies is estimated to be around US$8.6 billion per year including lost lives and livelihoods, medical care and associated costs, as well as uncalculated psychological trauma.[20]

Etymology

The name rabies is derived from the Latin rabies, meaning "madness".[21] The Greeks derived the word lyssa, from lud or "violent"; this root is used in the genus name of the rabies virus, Lyssavirus.[22]

Signs and symptoms

Animals with "dumb" rabies appear depressed, lethargic, and uncoordinated

The period between infection and the first symptoms (incubation period) is typically one to three months in humans.[23] This period may be as short as four days or longer than six years, depending on the location and severity of the wound and the amount of virus introduced.[23] Initial symptoms of rabies are often nonspecific, such as fever and headache.[23] As rabies progresses and causes inflammation of the brain and meninges, symptoms can include slight or partial paralysis, anxiety, insomnia, confusion, agitation, abnormal behavior, paranoia, terror, and hallucinations.[10][23] The person may also have fear of water.[1]

The symptoms eventually progress to delirium and coma.[10][23] Death usually occurs two to ten days after first symptoms. Survival is almost unknown once symptoms have presented, even with intensive care.[23][24]

Man with rabies displaying hydrophobia

Rabies has also occasionally been referred to as hydrophobia ("fear of water") throughout its history.[25] It refers to a set of symptoms in the later stages of an infection in which the person has difficulty swallowing, shows panic when presented with liquids to drink, and cannot quench their thirst. Saliva production is greatly increased, and attempts to drink, or even the intention or suggestion of drinking, may cause excruciatingly painful spasms of the muscles in the throat and larynx. Since the infected individual cannot swallow saliva and water, the virus has a much higher chance of being transmitted, because it multiplies and accumulates in the salivary glands and is transmitted through biting.[26]

Hydrophobia is commonly associated with furious rabies, which affects 80% of rabies-infected people. This form of rabies causes irrational aggression in the host, which aids in the spreading of the virus through animal bites;[27][28] a "foaming at the mouth" effect, caused by the accumulation of saliva, is also commonly associated with rabies in the public perception and in popular culture.[29][30][31] The remaining 20% may experience a paralytic form of rabies that is marked by muscle weakness, loss of sensation, and paralysis; this form of rabies does not usually cause fear of water.[32]

Cause

Rabies is caused by a number of lyssaviruses including the rabies virus and Australian bat lyssavirus.[4] Duvenhage lyssavirus may cause a rabies-like infection.[33]

The rabies virus is the type species of the Lyssavirus genus, in the family Rhabdoviridae, order Mononegavirales. Lyssavirions have helical symmetry, with a length of about 180 nm and a cross-section of about 75 nm.[34] These virions are enveloped and have a single-stranded RNA genome with negative sense. The genetic information is packed as a ribonucleoprotein complex in which RNA is tightly bound by the viral nucleoprotein. The RNA genome of the virus encodes five genes whose order is highly conserved: nucleoprotein (N), phosphoprotein (P), matrix protein (M), glycoprotein (G), and the viral RNA polymerase (L).[35]

To enter cells, trimeric spikes on the exterior of the membrane of the virus interact with a specific cell receptor, the most likely one being the acetylcholine receptor. The cellular membrane pinches in a procession known as pinocytosis and allows entry of the virus into the cell by way of an endosome. The virus then uses the acidic environment, which is necessary, of that endosome and binds to its membrane simultaneously, releasing its five proteins and single-strand RNA into the cytoplasm.[36]

Once within a muscle or nerve cell, the virus undergoes replication. The L protein then transcribes five mRNA strands and a positive strand of RNA all from the original negative strand RNA using free nucleotides in the cytoplasm. These five mRNA strands are then translated into their corresponding proteins (P, L, N, G and M proteins) at free ribosomes in the cytoplasm. Some proteins require post-translational modifications. For example, the G protein travels through the rough endoplasmic reticulum, where it undergoes further folding, and is then transported to the Golgi apparatus, where a sugar group is added to it (glycosylation).[36]

When there are enough viral proteins, the viral polymerase will begin to synthesize new negative strands of RNA from the template of the positive-strand RNA. These negative strands will then form complexes with the N, P, L and M proteins and then travel to the inner membrane of the cell, where a G protein has embedded itself in the membrane. The G protein then coils around the N-P-L-M complex of proteins taking some of the host cell membrane with it, which will form the new outer envelope of the virus particle. The virus then buds from the cell.[36]

From the point of entry, the virus is neurotropic, traveling along the neural pathways into the central nervous system. The virus usually first infects muscle cells close to the site of infection, where they are able to replicate without being 'noticed' by the host's immune system. Once enough virus has been replicated, they begin to bind to acetylcholine receptors at the neuromuscular junction.[37] The virus then travels through the nerve cell axon via retrograde transport, as its P protein interacts with dynein, a protein present in the cytoplasm of nerve cells. Once the virus reaches the cell body it travels rapidly to the central nervous system (CNS), replicating in motor neurons and eventually reaching the brain.[10] After the brain is infected, the virus travels centrifugally to the peripheral and autonomic nervous systems, eventually migrating to the salivary glands, where it is ready to be transmitted to the next host.[38]: 317 

Transmission

All warm-blooded species, including humans, may become infected with the rabies virus and develop symptoms. Birds were first artificially infected with rabies in 1884; however, infected birds are largely, if not wholly, asymptomatic, and recover.[39] Other bird species have been known to develop rabies antibodies, a sign of infection, after feeding on rabies-infected mammals.[40][41]

The virus has also adapted to grow in cells of cold-blooded vertebrates.[42][43] Most animals can be infected by the virus and can transmit the disease to humans. Worldwide, about 99% of human rabies cases come from domestic dogs.[44] Other sources of rabies in humans include bats,[45][46] monkeys, raccoons, foxes, skunks, cattle, wolves, coyotes, cats, and mongooses (normally either the small Asian mongoose or the yellow mongoose).[47]

Rabies may also spread through exposure to infected bears, domestic farm animals, groundhogs, weasels, and other wild carnivorans. However, lagomorphs, such as hares and rabbits, and small rodents, such as chipmunks, gerbils, guinea pigs, hamsters, mice, rats, and squirrels, are almost never found to be infected with rabies and are not known to transmit rabies to humans.[48] Bites from mice, rats, or squirrels rarely require rabies prevention because these rodents are typically killed by any encounter with a larger, rabid animal, and would, therefore, not be carriers.[49] The Virginia opossum (a marsupial, unlike the other mammals named in this paragraph, which are all eutherians/placental), has a lower internal body temperature than the rabies virus prefers and therefore is resistant but not immune to rabies.[50] Marsupials, along with monotremes (platypuses and echidnas), typically have lower body temperatures than similarly sized eutherians.[51] In 2024, reports emerged that rabies is spreading in South African seals, possibly making it the first outbreak documented in marine mammals.[52][53]

The virus is usually present in the nerves and saliva of a symptomatic rabid animal.[54][55] The route of infection is usually, but not always, by a bite. In many cases, the infected animal is exceptionally aggressive, may attack without provocation, and exhibits otherwise uncharacteristic behavior.[56] This is an example of a viral pathogen modifying the behavior of its host to facilitate its transmission to other hosts. After a typical human infection by bite, the virus enters the peripheral nervous system. It then travels retrograde along the efferent nerves toward the central nervous system.[57] During this phase, the virus cannot be easily detected within the host, and vaccination may still confer cell-mediated immunity to prevent symptomatic rabies. When the virus reaches the brain, it rapidly causes encephalitis, the prodromal phase, which is the beginning of the symptoms. Once the patient becomes symptomatic, treatment is almost never effective and mortality is over 99%. Rabies may also inflame the spinal cord, producing transverse myelitis.[58][59]

Although it is theoretically possible for rabies-infected humans to transmit it to others by biting or otherwise, no such cases have ever been documented, because infected humans are usually hospitalized and necessary precautions taken. Casual contact, such as touching a person with rabies or contact with non-infectious fluid or tissue (urine, blood, feces), does not constitute an exposure and does not require post-exposure prophylaxis. But as the virus is present in sperm and vaginal secretions, it might be possible for rabies to spread through sex.[60] There are only a small number of recorded cases of human-to-human transmission of rabies, and all occurred through organ transplants, most frequently with corneal transplantation, from infected donors.[61][62]

Diagnosis

Rabies can be difficult to diagnose because, in the early stages, it is easily confused with other diseases or even with a simple aggressive temperament.[63] The reference method for diagnosing rabies is the fluorescent antibody test (FAT), an immunohistochemistry procedure, which is recommended by the World Health Organization (WHO).[64] The FAT relies on the ability of a detector molecule (usually fluorescein isothiocyanate) coupled with a rabies-specific antibody, forming a conjugate, to bind to and allow the visualisation of rabies antigen using fluorescent microscopy techniques. Microscopic analysis of samples is the only direct method that allows for the identification of rabies virus-specific antigen in a short time and at a reduced cost, irrespective of geographical origin and status of the host. It has to be regarded as the first step in diagnostic procedures for all laboratories. Autolysed samples can, however, reduce the sensitivity and specificity of the FAT.[65] The RT PCR assays proved to be a sensitive and specific tool for routine diagnostic purposes,[66] particularly in decomposed samples[67] or archival specimens.[68] The diagnosis can be reliably made from brain samples taken after death. The diagnosis can also be made from saliva, urine, and cerebrospinal fluid samples, but this is not as sensitive or reliable as brain samples.[65] Cerebral inclusion bodies called Negri bodies are 100% diagnostic for rabies infection but are found in only about 80% of cases.[34] If possible, the animal from which the bite was received should also be examined for rabies.[69]

Some light microscopy techniques may also be used to diagnose rabies at a tenth of the cost of traditional fluorescence microscopy techniques, allowing identification of the disease in less-developed countries.[70] A test for rabies, known as LN34, is easier to run on a dead animal's brain and might help determine who does and does not need post-exposure prevention.[71] The test was developed by the Centers for Disease Control and Prevention (CDC) in 2018.[71]

The differential diagnosis in a case of suspected human rabies may initially include any cause of encephalitis, in particular infection with viruses such as herpesviruses, enteroviruses, and arboviruses such as West Nile virus. The most important viruses to rule out are herpes simplex virus type one, varicella zoster virus, and (less commonly) enteroviruses, including coxsackieviruses, echoviruses, polioviruses, and human enteroviruses 68 to 71.[72]

New causes of viral encephalitis are also possible, as was evidenced by the 1999 outbreak in Malaysia of 300 cases of encephalitis with a mortality rate of 40% caused by Nipah virus, a newly recognized paramyxovirus.[73] Likewise, well-known viruses may be introduced into new locales, as is illustrated by the outbreak of encephalitis due to West Nile virus in the eastern United States.[74]

Prevention

Almost all human exposure to rabies was fatal until a vaccine was developed in 1885 by Louis Pasteur and Émile Roux. Their original vaccine was harvested from infected rabbits, from which the virus in the nerve tissue was weakened by allowing it to dry for five to ten days.[75] Similar nerve tissue-derived vaccines are still used in some countries, as they are much cheaper than modern cell culture vaccines.[76]

The human diploid cell rabies vaccine was started in 1967. Less expensive purified chicken embryo cell vaccine and purified vero cell rabies vaccine are now available.[69] A recombinant vaccine called V-RG has been used in Belgium, France, Germany, and the United States to prevent outbreaks of rabies in undomesticated animals.[77] Immunization before exposure has been used in both human and nonhuman populations, where, as in many jurisdictions, domesticated animals are required to be vaccinated.[78]

A young girl about to receive PEP after being bitten by an animal thought to be rabid

The Missouri Department of Health and Senior Services Communicable Disease Surveillance 2007 Annual Report states the following can help reduce the risk of contracting rabies:[79]

  • Vaccinating dogs, cats, and ferrets against rabies
  • Keeping pets under supervision
  • Not handling wild animals or strays
  • Contacting an animal control officer upon observing a wild animal or a stray, especially if the animal is acting strangely
  • If bitten by an animal, washing the wound with soap and water for 10 to 15 minutes and contacting a healthcare provider to determine if post-exposure prophylaxis is required

28 September is World Rabies Day, which promotes the information, prevention, and elimination of the disease.[80]

In Asia and in parts of the Americas and Africa, dogs remain the principal host. Mandatory vaccination of animals is less effective in rural areas. Especially in developing countries, pets may not be privately kept and their destruction may be unacceptable. Oral vaccines can be safely distributed in baits, a practice that has successfully reduced rabies in rural areas of Canada, France, and the United States. In Montreal, Quebec, Canada, baits are successfully used on raccoons in the Mount-Royal Park area. Vaccination campaigns may be expensive, but cost-benefit analysis suggests baits may be a cost-effective method of control.[81] In Ontario, a dramatic drop in rabies was recorded when an aerial bait-vaccination campaign was launched.[82]

The number of recorded human deaths from rabies in the United States has dropped from 100 or more annually in the early 20th century to one or two per year because of widespread vaccination of domestic dogs and cats and the development of human vaccines and immunoglobulin treatments. Most deaths now result from bat bites, which may go unnoticed by the victim and hence untreated.[83]

Treatment

After exposure

Treatment after exposure can prevent the disease if given within 10 days. The rabies vaccine is 100% effective if given before symptoms of rabies appear.[34][36][84] Every year, more than 15 million people get vaccinated after potential exposure. While this works well, the cost is significant.[85] In the US it is recommended people receive one dose of human rabies immunoglobulin (HRIG) and four doses of rabies vaccine over a 14-day period.[86] HRIG is expensive and makes up most of the cost of post-exposure treatment, ranging as high as several thousand dollars.[87] In the UK, one dose of HRIG costs the National Health Service £1,000,[88] although this is not flagged as a "high-cost medication".[89] A full course of vaccine costs £120–180.[90] As much as possible of HRIG should be injected around the bites, with the remainder being given by deep intramuscular injection at a site distant from the vaccination site.[36]

People who have previously been vaccinated against rabies do not need to receive the immunoglobulin—only the postexposure vaccinations on days 0 and 3.[91] The side effects of modern cell-based vaccines are similar to the side effects of flu shots. The old nerve-tissue-based vaccination required multiple injections into the abdomen with a large needle but is inexpensive.[92] It is being phased out and replaced by affordable World Health Organization intradermal-vaccination regimens.[69] In children less than a year old, the lateral thigh is recommended.[93]

Thoroughly washing the wound as soon as possible with soap and water for approximately five minutes is effective in reducing the number of viral particles.[94] Povidone-iodine or alcohol is then recommended to reduce the virus further.[95]

Awakening to find a bat in the room, or finding a bat in the room of a previously unattended child or mentally disabled or intoxicated person, is an indication for post-exposure prophylaxis (PEP). The recommendation for the precautionary use of PEP in bat encounters where no contact is recognized has been questioned in the medical literature, based on a cost–benefit analysis.[96] However, a 2002 study has supported the protocol of precautionary administration of PEP where a child or mentally compromised individual has been alone with a bat, especially in sleep areas, where a bite or exposure may occur with the victim being unaware.[97]

After onset

Once rabies develops, death almost certainly follows. Palliative care in a hospital setting is recommended with administration of large doses of pain medication, and sedatives in preference to physical restraint. Ice fragments can be given by mouth for thirst, but there is no good evidence intravenous hydration is of benefit.[98]

A treatment known as the Milwaukee protocol, which involves putting people with rabies symptoms into a chemically induced coma and using antiviral medications in an attempt to protect their brain until their body has had time to produce rabies antibodies, has been occasionally used.[99] It was initially attempted in 2004 on Jeanna Giese, a teenage girl from Wisconsin, who subsequently became the first human known to have survived rabies without receiving post-exposure prophylaxis before symptom onset.[100][101] Giese did require extensive rehabilitation afterward, and her balance and neural function remained impaired.[102] The protocol has been enacted on many rabies victims since, but has been adjudged a failure; some survivors of the acute initial phase later died of rabies. Concerns have also been raised about its monetary costs and its ethics.[99][103]

Antiviral therapy to combat the effects of rabies has also been researched; favipiravir, for example, has shown potential at inhibiting the development of encephalitis. It has been suggested that such therapy in combination with immunotherapy and neuroprotective measures could be beneficial.[104]

Prognosis

Vaccination after exposure, PEP, is highly successful in preventing rabies.[84] In unvaccinated humans, rabies is almost certainly fatal after neurological symptoms have developed.[105]

Epidemiology

Map of rabies-free countries and territories

In 2010, an estimated 26,000 people died from rabies, down from 54,000 in 1990.[106] The majority of the deaths occurred in Asia and Africa.[105] As of 2015, India (approximately 20,847), followed by China (approximately 6,000) and the Democratic Republic of the Congo (5,600), had the most cases.[107] A 2015 collaboration between the World Health Organization, World Organization of Animal Health (OIE), Food and Agriculture Organization of the United Nation (FAO), and Global Alliance for Rabies Control has a goal of eliminating deaths from rabies by 2030.[108]

India

India has the highest rate of human rabies in the world, primarily because of stray dogs,[109] whose number has greatly increased since a 2001 law forbade the killing of dogs.[110] Effective control and treatment of rabies in India is hindered by a form of mass hysteria known as puppy pregnancy syndrome (PPS). Dog bite victims with PPS, male as well as female, become convinced that puppies are growing inside them, and often seek help from faith healers rather than medical services.[111] An estimated 20,000 people die every year from rabies in India, more than a third of the global total.[110]

Australia

Australia has an official rabies-free status,[112] although Australian bat lyssavirus (ABLV), discovered in 1996, is a rabies-causing virus related to the rabies virus prevalent in Australian native bat populations.

United States

Rabies cases in humans and domestic animals – United States, 1938–2018

Canine-specific rabies has been eradicated in the United States, but rabies is common among wild animals, and an average of 100 dogs become infected from other wildlife each year.[113][114]

High public awareness of the virus, efforts at vaccination of domestic animals and curtailment of feral populations, and availability of postexposure prophylaxis have made rabies very rare in humans in the United States. From 1960 to 2018, a total of 125 such cases were reported in the United States; of them, 36 (28%) were attributed to dog bites suffered during international travel.[115] Among the 89 infections acquired in the United States, 62 (70%) were attributed to bats.[115] The most recent rabies death in the United States was in November 2021, where a Texas child was bitten by a bat in late August 2021 but his parents failed to get him treatment. He died less than three months later.[116]

Europe

Either no or very few cases of rabies are reported each year in Europe; cases are contracted both during travel and in Europe.[117]

In Switzerland the disease was virtually eliminated after scientists placed chicken heads laced with live attenuated vaccine in the Swiss Alps.[82] Foxes, proven to be the main source of rabies in the country, ate the chicken heads and became immunized.[82][118]

Italy, after being declared rabies-free from 1997 to 2008, has witnessed a reemergence of the disease in wild animals in the Triveneto regions (Trentino-Alto Adige/Südtirol, Veneto and Friuli-Venezia Giulia) due to the spreading of an epidemic in the Balkans that also affected Austria. An extensive wild animal vaccination campaign eliminated the virus from Italy again, and it regained the rabies-free country status in 2013, the last reported case of rabies being reported in a red fox in early 2011.[119][120]

The United Kingdom has been free of rabies since the early 20th century except for a rabies-like virus (EBLV-2) in a few Daubenton's bats. There has been one fatal case of EBLV-2 transmission to a human.[121] There have been four deaths from rabies, transmitted abroad by dog bites, since 2000. The last infection in the UK occurred in 1922, and the last death from indigenous rabies was in 1902.[122][123]

Sweden and mainland Norway have been free of rabies since 1886.[124] Bat rabies antibodies (but not the virus) have been found in bats.[125] On Svalbard, animals can cross the arctic ice from Greenland or Russia.

Mexico

Mexico was certified by the World Health Organization as being free of dog-transmitted rabies in 2019 because no case of dog-human transmission had been recorded in two years.[126]

Asian countries

Despite rabies being preventable and the many successes of the years from countries such as North America, South Korea and Western Europe, Rabies remains endemic in many Southeast Asian countries including Cambodia, Bangladesh, Bhutan, North Korea, India, Indonesia, Myanmar Nepal, Sri Lanka, and Thailand.[127] Half the global rabies deaths occur in southeast Asia - approx. 26,000 per year.[128]

Much of what prevents Asia from implementing the same measures as other countries is cost.[129] Treating wild canines is the primary means of preventing rabies, however it costs 10 times more than treating individuals as they come with bites, and research also increases cost. As a result, India and other surrounding countries are unable to apply many preventative measures because of financial restrictions.[130]

Thailand

In 2013 human rabies was nearly eradicated in the state of Thailand after new measures were put into place requiring the vaccination of all domestic dogs as well as programs seeking to vaccinate wild dogs and large animals.[131] However, neighboring countries unable to afford rabies control measures – Cambodia, Laos, and Myanmar – allowed infected animals to continue to pass the border and infect the Thai population, leading to ~100 cases a year.[132] These areas around the border are called Rabies Red areas and are where Thailand continuously struggles with eradication and will do so until the surrounding countries eliminate the virus.[131]

Thailand has the resources and medicine necessary to tackle rabies such as implementing regulations that require all children to receive a rabies vaccination before attending schools and having clinics available for those bit or scratched by a possible rabid animal. However, individual choice is still a factor, and 10 people per year die out of refusal to seek treatment.[133]

Cambodia

Cambodia has approximately 800 cases of human rabies per year, making it one of the top countries in human rabies incidences.[134] Much of this falls on their lack of animal care; Cambodia has hundreds of thousands of animals infected with rabies, another global high, yet little surveillance of said animals and few laws requiring pets and other household animals to be vaccinated.[134] In recent years Cambodia has improved significantly in their human rabies medical practices, with clinics all over the countries being made with treatments and vaccination on hand as well as rabies-related education in school classes.[135] However, it is still lacking in terms of animal surveillance and treatment which leads to bleeding into surrounding countries.[128]

History

Rabies has been known since around 2000 BC.[136] The first written record of rabies is in the Mesopotamian Codex of Eshnunna (c. 1930 BC), which dictates that the owner of a dog showing symptoms of rabies should take preventive measures against bites. If another person were bitten by a rabid dog and later died, the owner was heavily fined.[137]

In ancient Greece, rabies was supposed to be caused by Lyssa, the spirit of mad rage.[138]

Ineffective folk remedies abounded in the medical literature of the ancient world. The physician Scribonius Largus prescribed a poultice of cloth and hyena skin; Antaeus recommended a preparation made from the skull of a hanged man.[139]

Rabies appears to have originated in the Old World, the first epizootic in the New World occurring in Boston in 1768.[140]

Rabies was considered a scourge for its prevalence in the 19th century. In France and Belgium, where Saint Hubert was venerated, the "St Hubert's Key" was heated and applied to cauterize the wound. By an application of magical thinking, dogs were branded with the key in hopes of protecting them from rabies.

It was not uncommon for a person bitten by a dog merely suspected of being rabid to commit suicide or to be killed by others.[22]

In ancient times the attachment of the tongue (the lingual frenulum, a mucous membrane) was cut and removed, as this was where rabies was thought to originate. This practice ceased with the discovery of the actual cause of rabies.[38] Louis Pasteur's 1885 nerve tissue vaccine was successful, and was progressively improved to reduce often severe side-effects.[23]

In modern times, the fear of rabies has not diminished, and the disease and its symptoms, particularly agitation, have served as an inspiration for several works of zombie or similarly themed fiction, often portraying rabies as having mutated into a stronger virus which fills humans with murderous rage or incurable illness, bringing about a devastating, widespread pandemic.[141]

Other animals

Two dogs with the paralytic, or dumb, form of rabies

Rabies is infectious to mammals; three stages of central nervous system infection are recognized. The clinical course is often shorter in animals than in humans, but result in similar symptoms and almost always death. The first stage is a one- to three-day period characterized by behavioral changes and is known as the prodromal stage. The second is the excitative stage, which lasts three to four days. This stage is often known as "furious rabies" for the tendency of the affected animal to be hyper-reactive to external stimuli and bite or attack anything near. In some cases, animals skip the excitative stage and develop paralysis, as in the third phase; the paralytic phase. This stage develops by damage to motor neurons. Incoordination is seen, owing to rear limb paralysis, and drooling and difficulty swallowing is caused by paralysis of facial and throat muscles. Death is usually caused by respiratory arrest.[143]

See also

References

  1. ^ a b c d e f g h i j k l m n o p q r s t u "Rabies Fact Sheet N°99". World Health Organization. July 2013. Archived from the original on 1 April 2014. Retrieved 28 February 2014.
  2. ^ "Rabies – Symptoms and causes". Mayo Clinic. Retrieved 9 April 2018.
  3. ^ "Rabies". Mayo Clinic. Retrieved 5 October 2023.
  4. ^ a b c "Rabies, Australian bat lyssavirus and other lyssaviruses". The Department of Health. December 2013. Archived from the original on 4 March 2014. Retrieved 1 March 2014.
  5. ^ "Rabies diagnosis and treatment". Mayo clinic. 27 June 2023.
  6. ^ a b "Rabies". CDC. 29 July 2020. Retrieved 31 January 2021.
  7. ^ "Rabies, Symptoms, Causes, Treatment". Medical News Today. 15 November 2017.
  8. ^ "Rabies, Symptoms and causes". Mayo Clinic.
  9. ^ "Animal bites and rabies". Johns Hopkins Medicine. 27 February 2020.
  10. ^ a b c d Cotran RS, Kumar V, Fausto N (2005). Robbins and Cotran Pathologic Basis of Disease (7th ed.). Elsevier/Saunders. p. 1375. ISBN 978-0-7216-0187-8.
  11. ^ a b c Tintinalli JE (2010). Emergency Medicine: A Comprehensive Study Guide (Emergency Medicine (Tintinalli)). McGraw-Hill. pp. Chapter 152. ISBN 978-0-07-148480-0.
  12. ^ Wunner WH (2010). Rabies: Scientific Basis of the Disease and Its Management. Academic Press. p. 556. ISBN 978-0-08-055009-1.
  13. ^ Manoj S, Mukherjee A, Johri S, Kumar KV (2016). "Recovery from rabies, a universally fatal disease". Military Medical Research. 3 (1): 21. doi:10.1186/s40779-016-0089-y. ISSN 2054-9369. PMC 4947331. PMID 27429788.
  14. ^ Weyer J, Msimang-Dermaux V, Paweska JT, Blumberg LH, Le Roux K, Govender P, et al. (9 June 2016). "A case of human survival of rabies, South Africa". Southern African Journal of Infectious Diseases. 31 (2): 66–68. doi:10.1080/23120053.2016.1128151. hdl:2263/59121. ISSN 2312-0053.
  15. ^ Gilbert AT, Petersen BW, Recuenco S, Niezgoda M, Gómez J, Laguna-Torres VA, Rupprecht C (August 2012). "Evidence of rabies virus exposure among humans in the Peruvian Amazon". The American Journal of Tropical Medicine and Hygiene. 87 (2): 206–215. doi:10.4269/ajtmh.2012.11-0689. PMC 3414554. PMID 22855749.
  16. ^ "Rabies: The Facts" (PDF). World Health Organization. Archived (PDF) from the original on 24 February 2017. Retrieved 24 February 2017.
  17. ^ WHO Expert Consultation on Rabies : second report (PDF) (2nd ed.). Geneva: WHO. 2013. p. 3. ISBN 978-92-4-120982-3. Archived (PDF) from the original on 20 October 2014.
  18. ^ a b "Rabies-Free Countries and Political Units". CDC. Archived from the original on 5 March 2014. Retrieved 8 May 2019.
  19. ^ "Neglected Tropical Diseases". cdc.gov. 6 June 2011. Archived from the original on 4 December 2014. Retrieved 28 November 2014.
  20. ^ "Rabies". www.who.int. Retrieved 13 August 2024.
  21. ^ Simpson DP (1979). Cassell's Latin Dictionary (5th ed.). London: Cassell. p. 883. ISBN 978-0-304-52257-6.
  22. ^ a b Rotivel Y (1995). Rupprecht CE, Smith JS, Fekadu M, Childs JE (eds.). "Introduction: The ascension of wildlife rabies: a cause for public health concern or intervention?". Emerging Infectious Diseases. 1 (4): 107–114. doi:10.3201/eid0104.950401. PMC 2626887. PMID 8903179. Archived from the original on 26 April 2009.
  23. ^ a b c d e f g Giesen A, Gniel D, Malerczyk C (March 2015). "30 Years of rabies vaccination with Rabipur: a summary of clinical data and global experience". Expert Review of Vaccines (Review). 14 (3): 351–367. doi:10.1586/14760584.2015.1011134. PMID 25683583.
  24. ^ Rupprecht CE, Willoughby R, Slate D (December 2006). "Current and future trends in the prevention, treatment and control of rabies". Expert Review of Anti-Infective Therapy. 4 (6): 1021–38. doi:10.1586/14787210.4.6.1021. PMID 17181418. S2CID 36979186.
  25. ^ Cliff AD, Haggett P, Smallman-Raynor M (2004). World atlas of epidemic diseases. London: Arnold. p. 51. ISBN 978-0-340-76171-7.
  26. ^ "Rabies". AnimalsWeCare.com. Archived from the original on 3 September 2014.
  27. ^ "How does rabies cause aggression?". medicalnewstoday.com. Medical News Today. 14 October 2017. Retrieved 19 January 2023.
  28. ^ Tian Z, Chen Y, Yan W (December 2019). "Clinical features of rabies patients with abnormal sexual behaviors as the presenting manifestations: a case report and literature review". BMC Infectious Diseases. 19 (1): 679. doi:10.1186/s12879-019-4252-4. ISSN 1471-2334. PMC 6670183. PMID 31370800.
  29. ^ Wilson PJ, Rohde RE, Oertli EH, Willoughby Jr RE (2019). Rabies: Clinical Considerations and Exposure Evaluations. Elsevier. p. 28. ISBN 978-0-323-63979-8. Retrieved 10 May 2023.
  30. ^ CDC. "How Do You Know if an Animal Has Rabies?". CDC Rabies and Kids. Centers for Disease Control and Prevention. Retrieved 10 May 2023.
  31. ^ "Rabies (for Parents)". KidsHealth.org. Nemours KidsHealth. Retrieved 10 May 2023.
  32. ^ "Symptoms of rabies". NHS.uk. 12 June 2012. Archived from the original on 14 September 2014. Retrieved 3 September 2014.
  33. ^ van Thiel PP, de Bie RM, Eftimov F, Tepaske R, Zaaijer HL, van Doornum GJ, et al. (July 2009). "Fatal human rabies due to Duvenhage virus from a bat in Kenya: failure of treatment with coma-induction, ketamine, and antiviral drugs". PLOS Neglected Tropical Diseases. 3 (7): e428. doi:10.1371/journal.pntd.0000428. PMC 2710506. PMID 19636367.
  34. ^ a b c Drew WL (2004). "Chapter 41: Rabies". In Ryan KJ, Ray CG (eds.). Sherris Medical Microbiology (4th ed.). McGraw Hill. pp. 597–600. ISBN 978-0-8385-8529-0.
  35. ^ Finke S, Conzelmann KK (August 2005). "Replication strategies of rabies virus". Virus Research. 111 (2): 120–131. doi:10.1016/j.virusres.2005.04.004. PMID 15885837.
  36. ^ a b c d e "Rabies Post-Exposure Prophylaxis". Centers for Disease Control and Prevention (CDC). 23 December 2009. Archived from the original on 1 February 2010. Retrieved 30 January 2010.
  37. ^ Gluska S, Zahavi EE, Chein M, Gradus T, Bauer A, Finke S, Perlson E (August 2014). "Rabies Virus Hijacks and accelerates the p75NTR retrograde axonal transport machinery". PLOS Pathogens. 10 (8): e1004348. doi:10.1371/journal.ppat.1004348. PMC 4148448. PMID 25165859.
  38. ^ a b Baer G (1991). The Natural History of Rabies. CRC Press. ISBN 978-0-8493-6760-1. Retrieved 31 October 2011.
  39. ^ Shannon LM, Poulton JL, Emmons RW, Woodie JD, Fowler ME (April 1988). "Serological survey for rabies antibodies in raptors from California". Journal of Wildlife Diseases. 24 (2): 264–67. doi:10.7589/0090-3558-24.2.264. PMID 3286906.
  40. ^ Gough PM, Jorgenson RD (July 1976). "Rabies antibodies in sera of wild birds". Journal of Wildlife Diseases. 12 (3): 392–5. doi:10.7589/0090-3558-12.3.392. PMID 16498885.
  41. ^ Jorgenson RD, Gough PM, Graham DL (July 1976). "Experimental rabies in a great horned owl". Journal of Wildlife Diseases. 12 (3): 444–47. doi:10.7589/0090-3558-12.3.444. PMID 16498892. S2CID 11374356.
  42. ^ Wong D. "Rabies". Wong's Virology. Archived from the original on 3 December 2008. Retrieved 19 March 2009.
  43. ^ Campbell JB, Charlton K (1988). Developments in Veterinary Virology: Rabies. Springer. p. 48. ISBN 978-0-89838-390-4.
  44. ^ "Rabies". World Health Organization. 21 April 2020. Retrieved 3 May 2021.
  45. ^ Pawan JL (1959). "The transmission of paralytic rabies in Trinidad by the vampire bat (Desmodus rotundus murinus) Wagner". Caribbean Medical Journal. 21: 110–136. PMID 13858519.
  46. ^ Pawan JL (1959). "Rabies in the vampire bat of Trinidad, with special reference to the clinical course and the latency of infection". Caribbean Medical Journal. 21: 137–156. PMID 14431118.
  47. ^ Taylor PJ (December 1993). "A systematic and population genetic approach to the rabies problem in the yellow mongoose (Cynictis penicillata)". The Onderstepoort Journal of Veterinary Research. 60 (4): 379–387. PMID 7777324.
  48. ^ "Rabies. Other Wild Animals: Terrestrial carnivores: raccoons, skunks and foxes". Centers for Disease Control and Prevention. Archived from the original on 20 December 2010. Retrieved 23 December 2010.
  49. ^ Anderson J, Frey R (2006). "Rabies". In Fundukian LJ (ed.). Gale Encyclopedia of Medicine (3rd ed.).
  50. ^ McRuer DL, Jones KD (May 2009). "Behavioral and nutritional aspects of the Virginian opossum (Didelphis virginiana)". The Veterinary Clinics of North America. Exotic Animal Practice. 12 (2): 217–236, viii. doi:10.1016/j.cvex.2009.01.007. PMID 19341950.
  51. ^ Gaughan JB, Hogan LA, Wallage A (2015). Abstract: Thermoregulation in marsupials and monotremes, chapter of Marsupials and monotremes: nature's enigmatic mammals. Nova Science Publishers, Incorporated. ISBN 978-1-63483-487-2. Retrieved 20 April 2022.
  52. ^ Anthes E (25 July 2024). "Rabies Is Spreading in South African Seals, Scientists Say". The New York Times -US. ISSN 0362-4331. Retrieved 4 August 2024.
  53. ^ "Alert on rabies risk along the Western Cape coast: be cautious". Western Cape Government. Retrieved 4 August 2024.
  54. ^ The Merck Manual (11th ed.). 1983. p. 183.
  55. ^ The Merck manual of Medical Information (Second Home ed.). 2003. p. 484.
  56. ^ Turton J (2000). "Rabies: a killer disease". National Department of Agriculture. Archived from the original on 23 September 2006.
  57. ^ Jackson AC, Wunner WH (2002). Rabies. Academic Press. p. 290. ISBN 978-0-12-379077-4. Archived from the original on 8 January 2014.
  58. ^ Lynn DJ, Newton HB, Rae-Grant AD (2012). The 5-Minute Neurology Consult. Lippincott Williams & Wilkins. pp. 414–. ISBN 978-1-4511-0012-9.
  59. ^ Davis LE, King MK, Schultz JL (2005). Fundamentals of neurologic disease. Demos Medical Publishing. p. 73. ISBN 978-1-888799-84-2. Archived from the original on 8 January 2014.
  60. ^ "Rabies FAQs: Exposure, prevention and treatment". RabiesAlliance.org. Archived from the original on 24 September 2016.
  61. ^ Srinivasan A, Burton EC, Kuehnert MJ, Rupprecht C, Sutker WL, Ksiazek TG, et al. (March 2005). "Transmission of rabies virus from an organ donor to four transplant recipients". The New England Journal of Medicine. 352 (11): 1103–11. doi:10.1056/NEJMoa043018. PMID 15784663.
  62. ^ "Human Rabies Prevention – United States, 2008 Recommendations of the Advisory Committee on Immunization Practices". Centers for Disease Control and Prevention. 23 May 2008. Retrieved 11 February 2020.
  63. ^ Kahn CM, Line S, eds. (2010). The Merck Veterinary Manual (10th ed.). Kendallville, Indiana: Courier Kendallville, Inc. p. 1193. ISBN 978-0-911910-93-3.
  64. ^ Dean DJ, Abelseth MK (1973). "Ch. 6: The fluorescent antibody test". In Kaplan MM, Koprowski H (eds.). Laboratory techniques in rabies. Monograph series. Vol. 23 (3rd ed.). World Health Organization. p. 73. ISBN 978-92-4-140023-7.
  65. ^ a b Fooks AR, Johnson N, Freuling CM, Wakeley PR, Banyard AC, McElhinney LM, et al. (September 2009). "Emerging technologies for the detection of rabies virus: challenges and hopes in the 21st century". PLOS Neglected Tropical Diseases. 3 (9): e530. doi:10.1371/journal.pntd.0000530. PMC 2745658. PMID 19787037.
  66. ^ Tordo N, Bourhy H, Sacramento D (1994). "Ch. 10: PCR technology for lyssavirus diagnosis". In Clewley JP (ed.). The Polymerase Chain Reaction (PCR) for Human Viral Diagnosis. CRC Press. pp. 125–145. ISBN 978-0-8493-4833-4.
  67. ^ David D, Yakobson B, Rotenberg D, Dveres N, Davidson I, Stram Y (June 2002). "Rabies virus detection by RT-PCR in decomposed naturally infected brains". Veterinary Microbiology. 87 (2): 111–18. doi:10.1016/s0378-1135(02)00041-x. PMID 12034539.
  68. ^ Biswal M, Ratho R, Mishra B (September 2007). "Usefulness of reverse transcriptase-polymerase chain reaction for detection of rabies RNA in archival samples". Japanese Journal of Infectious Diseases. 60 (5): 298–99. doi:10.7883/yoken.JJID.2007.298. PMID 17881871.
  69. ^ a b c Ly S, Buchy P, Heng NY, Ong S, Chhor N, Bourhy H, Vong S (September 2009). Carabin H (ed.). "Rabies situation in Cambodia". PLOS Neglected Tropical Diseases. 3 (9): e511. doi:10.1371/journal.pntd.0000511. PMC 2731168. PMID 19907631. e511.
  70. ^ Dürr S, Naïssengar S, Mindekem R, Diguimbye C, Niezgoda M, Kuzmin I, et al. (March 2008). Cleaveland S (ed.). "Rabies diagnosis for developing countries". PLOS Neglected Tropical Diseases. 2 (3): e206. doi:10.1371/journal.pntd.0000206. PMC 2268742. PMID 18365035. e206.
  71. ^ a b "New Rapid Rabies Test Could Revolutionize Testing and Treatment". CDC Online Newsroom. Centers for Disease Control and Prevention. 16 May 2018. Retrieved 23 May 2018.
  72. ^ "Rabies: Differential Diagnoses & Workup". eMedicine Infectious Diseases. 3 October 2008. Archived from the original on 28 November 2010. Retrieved 30 January 2010.
  73. ^ Taylor DH, Straw BE, Zimmerman JL, D'Allaire S (2006). Diseases of swine. Oxford: Blackwell. pp. 463–65. ISBN 978-0-8138-1703-3. Retrieved 30 January 2010.
  74. ^ Minagar A, Alexander JS (2005). Inflammatory Disorders Of The Nervous System: Pathogenesis, Immunology, and Clinical Management. Humana Press. ISBN 978-1-58829-424-1.[page needed]
  75. ^ Geison GL (April 1978). "Pasteur's work on rabies: reexamining the ethical issues". The Hastings Center Report. 8 (2): 26–33. doi:10.2307/3560403. JSTOR 3560403. PMID 348641.
  76. ^ Srivastava AK, Sardana V, Prasad K, Behari M (March 2004). "Diagnostic dilemma in flaccid paralysis following anti-rabies vaccine". Neurology India. 52 (1): 132–33. PMID 15069272. Archived from the original on 2 August 2009.
  77. ^ Reece JF, Chawla SK (September 2006). "Control of rabies in Jaipur, India, by the sterilisation and vaccination of neighbourhood dogs". The Veterinary Record. 159 (12): 379–383. doi:10.1136/vr.159.12.379. PMID 16980523. S2CID 5959305.
  78. ^ "Compendium of Animal Rabies Prevention and Control" (PDF). National Association of State Public Health Veterinarians. 31 December 2007. Archived from the original (PDF) on 12 July 2010. Retrieved 3 January 2010.
  79. ^ 2007 Annual Report (PDF) (Report). Bureau of Communicable Disease Control and Prevention. 2007. Archived from the original (PDF) on 11 May 2020. Retrieved 8 March 2011.
  80. ^ "World Rabies Day". World Health Organization (WHO). Archived from the original on 31 December 2011.
  81. ^ Meltzer MI (October–December 1996). "Assessing the costs and benefits of an oral vaccine for raccoon rabies: a possible model". Emerging Infectious Diseases. 2 (4): 343–9. doi:10.3201/eid0204.960411. PMC 2639934. PMID 8969251.
  82. ^ a b c Grambo RL (1995). The World of the Fox. Vancouver: Greystone Books. pp. 94–95. ISBN 978-0-87156-377-4.
  83. ^ "Rabies in the U.S." Centers for Disease Control and Prevention (CDC). 22 April 2011. Archived from the original on 31 December 2011. Retrieved 31 December 2011.
  84. ^ a b Lite J (8 October 2008). "Medical Mystery: Only One Person Has Survived Rabies without Vaccine – But How?". Scientific American. Archived from the original on 5 November 2009. Retrieved 30 January 2010.
  85. ^ "Human rabies: better coordination and emerging technology to improve access to vaccines". World Health Organization. Archived from the original on 24 February 2017. Retrieved 23 February 2017.
  86. ^ "Use of a Reduced (4-Dose) Vaccine Schedule for Postexposure Prophylaxis to Prevent Human Rabie" (PDF). Centers for Disease Control and Prevention (CDC). Archived from the original (PDF) on 25 July 2011.
  87. ^ "Cost of Rabies Prevention". U.S. Centers for Disease Control and Prevention. 11 June 2019. Archived from the original on 29 March 2016.
  88. ^ "BNF via NICE is only available in the UK". The National Institute for Health and Care Excellence. UK.
  89. ^ "Rabies immunoglobulin". Milton Keynes Formulary Formulary.
  90. ^ "Rabies – Vaccination". National Health Services (NHS). UK. 23 October 2017.
  91. ^ Park K (2013). Park's Textbook of Preventive and Social Medicine (22nd ed.). Banarsidas Bhanot, Jabalpur. p. 254. ISBN 978-93-82219-02-6.
  92. ^ Hicks DJ, Fooks AR, Johnson N (September 2012). "Developments in rabies vaccines". Clinical and Experimental Immunology. 169 (3): 199–204. doi:10.1093/clinids/13.4.644. PMC 3444995. PMID 22861358.
  93. ^ "Rabies". World Health Organization. Archived from the original on 15 February 2015. Retrieved 1 February 2015.
  94. ^ "Rabies & Australian bat lyssavirus information sheet". Health.vic.gov.au. Archived from the original on 18 August 2011. Retrieved 30 January 2012.
  95. ^ National Center for Disease Control (2014). "National Guidelines on Rabies Prophylaxis" (PDF). Archived from the original (PDF) on 5 September 2014. Retrieved 5 September 2014.
  96. ^ De Serres G, Skowronski DM, Mimault P, Ouakki M, Maranda-Aubut R, Duval B (June 2009). "Bats in the bedroom, bats in the belfry: reanalysis of the rationale for rabies postexposure prophylaxis". Clinical Infectious Diseases. 48 (11): 1493–99. doi:10.1086/598998. PMID 19400689.
  97. ^ Despond O, Tucci M, Decaluwe H, Grégoire MC, S Teitelbaum J, Turgeon N (March 2002). "Rabies in a nine-year-old child: The myth of the bite". The Canadian Journal of Infectious Diseases. 13 (2): 121–25. doi:10.1155/2002/475909. PMC 2094861. PMID 18159381.
  98. ^ Jackson AC (2020). "Chapter 17: Therapy of human rabies". In Jackson AC, Fooks AR (eds.). Rabies  – Scientific Basis of the Disease and Its Management (4th ed.). Elsevier Science. p. 561. doi:10.1016/B978-0-12-818705-0.00017-0. ISBN 978-0-12-818705-0. S2CID 240895449.
  99. ^ a b Jackson AC (2016). "Human Rabies: a 2016 Update". Curr Infect Dis Rep (Review). 18 (11): 38. doi:10.1007/s11908-016-0540-y. PMID 27730539. S2CID 25702043.
  100. ^ Jordan Lite (8 October 2008). "Medical Mystery: Only One Person Has Survived Rabies without Vaccine – But How?". Scientific American. Retrieved 16 October 2008.
  101. ^ Willoughby RE (April 2007). "A cure for a rabies?". Sci Am. 296 (4): 88–95. Bibcode:2007SciAm.296d..88W. doi:10.1038/scientificamerican0407-88. PMID 17479635.
  102. ^ Razner S (16 September 2019). "15 years after she survived rabies, Jeanna Giese seeks to save others from it". FDL Reporter. Retrieved 29 September 2024.
  103. ^ Zeiler FA, Jackson AC (2016). "Critical Appraisal of the Milwaukee Protocol for Rabies: This Failed Approach Should Be Abandoned". Can J Neurol Sci (Review). 43 (1): 44–51. doi:10.1017/cjn.2015.331. PMID 26639059.
  104. ^ Appolinario CM, Jackson AC (January 2015). "Antiviral therapy for human rabies". Antiviral Therapy. 20 (1): 1–10. doi:10.3851/IMP2851. hdl:11449/158463. PMID 25156675. Retrieved 14 November 2024.
  105. ^ a b "Rabies". World Health Organization (WHO). September 2011. Archived from the original on 31 December 2011. Retrieved 31 December 2011.
  106. ^ Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, et al. (December 2012). "Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010". Lancet. 380 (9859): 2095–2128. doi:10.1016/S0140-6736(12)61728-0. hdl:10536/DRO/DU:30050819. PMC 10790329. PMID 23245604. S2CID 1541253.
  107. ^ Hampson K, Coudeville L, Lembo T, Sambo M, Kieffer A, Attlan M, et al. (April 2015). "Estimating the global burden of endemic canine rabies". PLOS Neglected Tropical Diseases. 9 (4): e0003709. doi:10.1371/journal.pntd.0003709. PMC 4400070. PMID 25881058.
  108. ^ "Rabies". World Health Organization. Archived from the original on 15 February 2017. Retrieved 23 February 2017.
  109. ^ Dugan E (30 April 2008). "Dead as a dodo? Why scientists fear for the future of the Asian vulture". The Independent. London. Archived from the original on 17 May 2008. Retrieved 11 October 2008. India now has the highest rate of human rabies in the world.
  110. ^ a b Harris G (6 August 2012). "Where Streets Are Thronged With Strays Baring Fangs". New York Times. Archived from the original on 8 August 2012. Retrieved 6 August 2012.
  111. ^ "Medicine challenges Indian superstition". DW.DE. 31 December 2012. Archived from the original on 31 January 2013.
  112. ^ "Essential rabies maps". World Health Organization (WHO). Archived from the original on 17 February 2010.
  113. ^ "CDC – Rabies Surveillance in the U.S." www.cdc.gov. Archived from the original on 18 January 2017. Retrieved 10 April 2017.
  114. ^ Fox M (7 September 2007). "U.S. free of canine rabies virus". Reuters. Archived from the original on 17 May 2017. Retrieved 11 April 2017. "We don't want to misconstrue that rabies has been eliminated – dog rabies virus has been," CDC rabies expert Dr. Charles Rupprecht told Reuters in a telephone interview.
  115. ^ a b Pieracci EG, Pearson CM, Wallace RM, Blanton JD, Whitehouse ER, Ma X, et al. (June 2019). "Vital Signs: Trends in Human Rabies Deaths and Exposures – United States, 1938–2018". MMWR. Morbidity and Mortality Weekly Report. 68 (23): 524–28. doi:10.15585/mmwr.mm6823e1. PMC 6613553. PMID 31194721.
  116. ^ Blackburn D (2022). "Human Rabies – Texas, 2021". MMWR. Morbidity and Mortality Weekly Report. 71 (49): 1547–49. doi:10.15585/mmwr.mm7149a2. PMC 9762899. PMID 36480462.
  117. ^ "Surveillance Report - Annual Epidemiological Report for 2015 – Rabies" (PDF). European Centre for Disease Prevention and Control (ECDC). Retrieved 30 August 2018.
  118. ^ "Switzerland ended rabies epidemic by air dropping vaccinated chicken heads from helicopters". thefactsource.com. 20 November 2019. Retrieved 10 December 2019.
  119. ^ "Rabies in Africa: The RESOLAB network". 29 June 2015. Archived from the original on 3 August 2016. Retrieved 18 April 2016.
  120. ^ "Ministero della Salute: "Italia è indenne dalla rabbia". l'Ultimo caso nel 2011 – Quotidiano Sanità". Archived from the original on 3 June 2016. Retrieved 18 April 2016.
  121. ^ "Man dies from rabies after bat bite". BBC News. 24 November 2002.
  122. ^ "Rabies". NHS. 23 February 2017. Retrieved 30 August 2018.
  123. ^ "Q&A: Rabies". BBC News. 17 April 2015. Retrieved 30 August 2018.
  124. ^ Mehnert E (1988). "Rabies och bekämpningsåtgärder i 1800-talets Sverige" [Rabies and remedies in 19th century Sweden]. Svensk veterinärtidning [Swedish veterinary magazine] (in Swedish). 1988 (40). Sveriges veterinärförbund: 277–288. OCLC 939018709.
  125. ^ "Fladdermusrabies" [Bat rabies]. Statens Veterinärmedicinska Anstalt [State Veterinary Medical Institution] (in Swedish). Retrieved 28 October 2022.
  126. ^ "Cómo México se convirtió en el primer país del mundo libre de rabia transmitida por perros" [How Mexico became the first country in the world free of rabies transmitted by dogs]. BBC News (in Spanish). 12 November 2019. Retrieved 12 November 2019.
  127. ^ "Rabies in the South-East Asia Region". World Health Organization. 2024. In the South-East Asia Region, rabies is endemic in Nepal, Sri Lanka and Thailand
  128. ^ a b Hicks R (3 November 2023). "Rabies is Spreading in South Asia Fueled by Inequality and Neglect". Eco‑Business.
  129. ^ Abbas SS, Kakkar M (February 2015). "Rabies control in India: a need to close the gap between research and policy". Bull World Health Organ. 93 (2): 131–32. doi:10.2471/BLT.14.140723 (inactive 22 November 2024). PMC 4339964. PMID 25883407.{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
  130. ^ Chowdhury FR, Basher A, Amin MR, Hassan N, Patwary MI (2015). "Rabies in South Asia: fighting for elimination". Recent Pat Anti-Infect Drug Discov. 10 (1): 30–34. doi:10.2174/1574891x10666150410130024. PMID 25858305.
  131. ^ a b Thanapongtharm W, Suwanpakdee S, Chumkaeo A, Gilbert M, Wiratsudakul A (December 2021). "Current characteristics of animal rabies cases in Thailand and relevant risk factors identified by a spatial modeling approach". PLOS Negl Trop Dis. 15 (12): e0009980. doi:10.1371/journal.pntd.0009980. PMC 8668119. PMID 34851953.
  132. ^ CDC (2024). "Thailand". Travelers' health. Center for Disease Control and Prevention. Rabid dogs are commonly found,rabies treatment is often available.&text=Since children are more likely,for children traveling to Thailand
  133. ^ CDC (2024). "Thailand". Travelers' health. Center for Disease Control and Prevention. Dogs infected with rabies are sometimes found in Thailand. If rabies exposures occur while in Thailand, rabies vaccines are typically available throughout most of the country.
  134. ^ a b Baron JN, Chevalier V, Ly S, Duong V, Dussart P, Fontenille D, Peng YS, Martínez-López B (June 2022). "Accessibility to rabies centers and human rabies post-exposure prophylaxis rates in Cambodia: A Bayesian spatio-temporal analysis to identify optimal locations for future centers". PLOS Negl Trop Dis. 16 (6): e0010494. doi:10.1371/journal.pntd.0010494. PMC 9491732. PMID 35771752.
  135. ^ CDC (2024). "Cambodia". Travelers' Health. Center for Disease Control. Dogs infected with rabies are commonly found in Cambodia. If rabies exposures occur while in Cambodia, rabies vaccines are typically available throughout most of the country.
  136. ^ Adamson PB (1977). "The spread of rabies into Europe and the probable origin of this disease in antiquity". Journal of the Royal Asiatic Society of Great Britain & Ireland. Royal Asiatic Society of Great Britain and Ireland. 109 (2): 140–44. doi:10.1017/S0035869X00133829. JSTOR 25210880. PMID 11632333. S2CID 27354751.
  137. ^ Dunlop RH, Williams DJ (1996). Veterinary Medicine: An Illustrated History. Mosby. ISBN 978-0-8016-3209-9.
  138. ^ "Rabies: an ancient disease". Gobierno de México.
  139. ^ Barrett AD, Stanberry LR (2009). Vaccines for Biodefense and Emerging and Neglected Diseases. Academic Press. p. 612. ISBN 978-0-08-091902-7. Archived from the original on 28 April 2016. Retrieved 8 January 2016.
  140. ^ Baer GM (1991). The Natural History of Rabies (2nd ed.). CRC Press. ISBN 978-0-8493-6760-1. The first major epizootic in North America was reported in 1768, continuing until 1771 when foxes and dogs carried the disease to swine and domestic animals. The malady was so unusual that it was reported as a new disease
  141. ^ Than K (27 October 2010). "'Zombie Virus' Possible via Rabies-Flu Hybrid?". National Geographic. Archived from the original on 13 September 2015. Retrieved 13 September 2015.
  142. ^ Santo Tomás Pérez M (2002). La asistencia a los enfermos en Castilla en la Baja Edad Media. Universidad de Valladolid. pp. 172–3. ISBN 84-688-3906-X – via Biblioteca Virtual Miguel de Cervantes.
  143. ^ Ettinger SJ, Feldman EC (1995). Textbook of Veterinary Internal Medicine (4th ed.). W.B. Saunders Company. ISBN 978-0-7216-6795-9.

Further reading

  • Pankhurst, Richard. "The history and traditional treatment of rabies in Ethiopia." Medical History 14, no. 4 (1970): 378–389.
The offline app allows you to download all of Wikipedia's medical articles in an app to access them when you have no Internet.
Wikipedia's health care articles can be viewed offline with the Medical Wikipedia app.