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Helicobacter (view source)

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<big><center>[[Infectious agents and parasites|'''BACK TO INFECTIOUS AGENTS AND PARASITES''']]</center></big>

<big><center>[[Bacteria|'''BACK TO BACTERIA''']]</center></big>

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* These curved, microaerophilic, Gram-negative rods were discovered in the stomach of humans in 1987.

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* ''Helicobacter pylori'' in man.

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* In dogs: ''H. felis'', ''H. bizzozeronii'', ''H. salomonis'' and ''H. bilis''.

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* A [[Intestines - disease due to pathogens#|bacterial pathogen of the intestines]].

===Overview===

*Related to ''Campylobacter'' species and ''Arcobacter'' species

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*A [[Intestines - disease due to pathogens#|bacterial pathogen of the intestines]]

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*Discovered in the stomach of humans in 1987

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*''H. felis'', ''H. bizzozeronii'', ''H. salomonis'' and ''H. bilis'' found in gastric mucosa and intestines of dogs and cats

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*Helical, S-shaped or curved Gram negative rods

*Require enriched media; some grow on Skirrow agar

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*Microaerophilic

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*Microaerophilic, non-saccharolytic

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*Oxidase positive and catalase positive except for ''H. canis''

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*Helicobacters which colonise gastric mucosa are urease positive

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===Clinical infections===

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*''Helicobacter pylori'' causes gastritis and duodenal and gastric ulcers in humans

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*Association with gastric adenocarcinoma in humans

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*''H. mustelae'' has been associated with chronic gastritis and gastric ulcers in ferrets

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*Significance in gastrointestinal diseases of domestic carnivores not known

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