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Helicobacter (view source)

Revision as of 09:38, 8 July 2010

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===Clinical infections===
 
===Clinical infections===
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The significance of ''Helicobacter spp.'' in gastointestinal disease of domestic carnivores is unknown. Up to 80% of clinically healthy dogs have ''Helicobacter spp.'' present, several species have been identified in the dog such as;''H. felis'', ''H. bizzozeronii'', ''H. salomonis'' and ''H. bilis''. Experimental infection of dogs has failed to show a consistent relationship between infection with ''Helicobacter'' and the development of pathology.
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The only species known to be of veterinary importance is ''H. mustelae'' which has been associated with chronic gastritis and gastric ulcers in ferrets.
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''Helicobacter pylori'' infects humans causing gastritis as well as gastric and duodenal ulcers. It has also been associated with gastric adenocarcinoma in humans however There is no evidence for this in animals.
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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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* Carried in the [[Forestomach - Anatomy & Physiology|stomach]] of a high proportion of people.
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** 60% in the elderly.
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* Implicated in the development of peptic ulcers and gastritis in people.
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* Strong epidemiological evidence for the involvement of ''H. pylori'' in human gastric neoplasia.
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** No evidence this is the case for animals.
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* Several species demonstrated in dogs: ''H. felis'', ''H. bizzozeronii'', ''H. salomonis'' and ''H. bilis''.
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** Present in around 80% of clinically healthy pet dogs.
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*** Up to 100% in dogs from animal shelters.
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*Experimental infection of dogs has failed to show a consistent relationship between infection with ''Helicobacter'' and pathology.
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** Inflammation accompanies infection in some but not all infected dogs.
      
[[Category:Bacteria miscellaneous]][[Category:Rods]][[Category:Gram_negative_bacteria]]
 
[[Category:Bacteria miscellaneous]][[Category:Rods]][[Category:Gram_negative_bacteria]]
 
[[Category:Enteritis,_Bacterial]]
 
[[Category:Enteritis,_Bacterial]]
 
[[Category:To_Do_-_Bacteria]]
 
[[Category:To_Do_-_Bacteria]]
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