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Campylobacteriosis - Cattle (view source)
Revision as of 12:50, 17 August 2012
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[[File:Campylobacter2.jpg|thumb|200px|right|Campylobacter (Sourced from Wiki Commons)]]
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[[File:Campylobacter2.jpg|thumb|200px|right|Scanning electron microscope image showing the characteristic spiral, or corkscrew, shape of C. jejuni cells and related structures (Sourced from Wiki Commons)]]
==Introduction==
Gastrointestinal campylobacteriosis is caused by ''[[Campylobacter jejuni| Campylobacter jejuni]]'' or ''[[Campylobacter coli| Campylobacter coli]]''. It causes diarrhoea mainly in young animals and can infect cattle as well as other species such as [[Campylobacteriosis - Dogs and Cats|dogs]], [[Campylobacteriosis - Dogs and Cats|cats]], sheep, goat, ferrets, rabbits, hamsters, and mink.
[[Campylobacter|''Campylobacter'']] can also cause venereal disease and abortions in cattle. [[Campylobacter fetus subspecies venerealis|''C. fetus'' subsp.'' venearalis'']] causes Bovine Genital Campylobacteriosis and [[Campylobacter fetus subspecies fetus|''C. fetus'' subsp. ''fetus'']] causes abortion (although the incidence is much lower than in sheep).
==Signalment==
''C.jejuni'' and ''C.coli'' can cause diarrhoea in both adults and calves but is also a commensal in many species and can be found in healthy animal gastrointestinal tracts. Campylobacter is spread via the faecal oral route.
==Clinical Signs==
Calves are more seriously affected and suffer from '''thick mucoid diarrhoea''', often flecked with blood and can have pyrexia or a normal body temperature. Cattle may also suffer from tachycardia, rapid pulse rates and tachypnoea and weight loss. Adult cattle can become anorexic and show various reproductive signs such as anoestrus, irregular oestrus patterns, hot udders, agalactia, '''abortion''' and infertility.
==Diagnosis==
Rising antibody titre can confirm the presence of ''Campylobacter''. ''C. jenuni'' can be isolated and cultured from placental and foetal tissue. It causes the '''stunting and fusion of villi, dilation of crypts and crypt abscesses''' and mild cellular infiltration of the mucosa. The profound lesions can be found in the proximal small intestines and colon and can be visualised as comma-shaped organisms on the surface of the epithelium and within the lamina propria using silver staining.
In general, selective media containing antimicrobial agents such as polymyxin B or trimethoprim can be used to identify ''Campylobacter'' organisms from affected intestinal samples, stomach content, smegma or vaginal fluid. ''C. fetus'' can be detected from cervicovaginal mucus using agglutination test or an [[ELISA testing|ELISA]].
[[Category:To Do - Jaimie Meagor]]
==Treatment==
''C. jejuni'' can be treated with erythromycin and tetracycline, but resistance has been recorded for both drugs.
==Control==
The disease can be prevented with good husbandry and disinfection and cleaning protocols.
{{Learning
|flashcards = [[Campylobacteriosis in Cattle Flashcards]]
}}
==References==
{{CABI source
|datasheet = [http://www.cabi.org/ahpc/?compid=3&dsid=90245&loadmodule=datasheet&page=2144&site=160 ''Campylobacter'' infections]
|date =30 May 2011
}}
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[[Category:Intestinal Diseases - Cattle]]
[[Category:Enteritis, Bacterial]]
[[Category:CABI Expert Review]][[Category:CABI AHPC Pages]]
[[Category:Nick L]]