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A coccobacillus (plural coccobacilli) is a type of bacterium with a shape intermediate between cocci (spherical bacteria) and bacilli (rod-shaped bacteria).^[1] Coccobacilli are therefore in essence very short rods which may be mistaken for cocci. Haemophilus influenzae, Gardnerella vaginalis, and Chlamydia trachomatis are coccobacilli. Aggregatibacter actinomycetemcomitans is a Gram-negative coccobacillus prevalent in subgingival plaques. Acinetobacter strains may grow on solid media as coccobacilli. Bordetella pertussis is a Gram-negative coccobacillus responsible for causing whooping cough.

Coxiella burnetti is also a coccobacillus.^[2] Bacteria from the Brucella genus are medically important coccobacilli that cause brucellosis. Haemophilus ducreyi, another medically important Gram-negative coccobacillus, is observed in sexually transmitted disease, chancroid, of Third World countries.^[3]

References

^ "Dorlands Medical Dictionary:coccobacillus".
^ "persistent rickettsial disease".
^ Schaetchter's Mechanisms of Microbial Disease 4th Edition. ISBN 0-7817-5342-2

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[urlDorlands_Medical_Dictionary:coccobacillus-1] "Dorlands Medical Dictionary:coccobacillus".

[urlpersistent_rickettsial_disease-2] "persistent rickettsial disease".

[3] Schaetchter's Mechanisms of Microbial Disease 4th Edition. ISBN 0-7817-5342-2

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 [[Image:Coxiella burnetii 01.JPG|thumb|[[Coxiella burnetii]]]]
-A '''coccobacillus''' (plural ''coccobacilli'') is a type of [[bacterium]] with a shape that is intermediate between [[cocci]] (spherical bacteria) and [[bacilli]] (rod-shaped bacteria).<ref name="urlDorlands Medical Dictionary:coccobacillus">{{cite web |url=http://www.mercksource.com/pp/us/cns/cns_hl_dorlands_split.jsp?pg=/ppdocs/us/common/dorlands/dorland/two/000022330.htm |title=Dorlands Medical Dictionary:coccobacillus |work= |accessdate=}}</ref> Coccobacilli are therefore in essence very short rods which may be mistaken for cocci. ''[[Haemophilus influenzae]]'', ''[[Gardnerella vaginalis]]'', and ''[[Chlamydia trachomatis]]'' are coccobacilli. ''[[Aggregatibacter actinomycetemcomitans]]'' is a gram-negative coccobacillus that is prevalent in subgingival plaques. ''[[Acinetobacter]]'' strains may grow on solid media as coccobacilli. ''[[Bordetella pertussis]]'' is a gram-negative coccobacillus responsible for causing [[whooping cough]].
+A '''coccobacillus''' (plural '''coccobacilli''') is a type of [[bacterium]] with a shape intermediate between [[cocci]] (spherical bacteria) and [[bacilli]] (rod-shaped bacteria).<ref name="urlDorlands Medical Dictionary:coccobacillus">{{cite web |url=http://www.mercksource.com/pp/us/cns/cns_hl_dorlands_split.jsp?pg=/ppdocs/us/common/dorlands/dorland/two/000022330.htm |title=Dorlands Medical Dictionary:coccobacillus |work= |accessdate=}}</ref> Coccobacilli are therefore in essence very short rods which may be mistaken for cocci. ''[[Haemophilus influenzae]]'', ''[[Gardnerella vaginalis]]'', and ''[[Chlamydia trachomatis]]'' are coccobacilli. ''[[Aggregatibacter actinomycetemcomitans]]'' is a Gram-negative coccobacillus prevalent in subgingival plaques. ''[[Acinetobacter]]'' strains may grow on solid media as coccobacilli. ''[[Bordetella pertussis]]'' is a Gram-negative coccobacillus responsible for causing [[whooping cough]].
-''[[Coxiella burnetti]]'' is also a coccobacillus.<ref name="urlpersistent rickettsial disease">{{cite web |url=http://www.addl.purdue.edu/newsletters/2004/spring/qfever.htm |title=persistent rickettsial disease |work= |accessdate=}}</ref>
+''[[Coxiella burnetti]]'' is also a coccobacillus.<ref name="urlpersistent rickettsial disease">{{cite web |url=http://www.addl.purdue.edu/newsletters/2004/spring/qfever.htm |title=persistent rickettsial disease |work= |accessdate=}}</ref> Bacteria from the ''[[Brucella]]'' genus are medically important coccobacilli that cause brucellosis.  ''[[Haemophilus ducreyi]]'', another medically important Gram-negative coccobacillus, is observed in sexually transmitted disease, chancroid, of Third World countries.<ref> Schaetchter's Mechanisms of Microbial Disease 4th Edition. ISBN 0-7817-5342-2</ref>
-Bacteria from the ''[[Brucella]]'' genus are medically important coccobacilli that cause brucellosis.
-''[[Haemophilus ducreyi]]'' is another medically important gram-negative coccobacillus and is observed in sexually transmitted disease, chancroid, of third-world countries.<ref> Schaetchter's Mechanisms of Microbial Disease 4th Edition. ISBN 0-7817-5342-2</ref>
 ==References==