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| − | ===''Campylobacter fetus'' subspecies ''fetus''===
| + | [[Campylobacter fetus subspecies fetus]] |
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| − | *Sporadic abortion in cows and sheep
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| − | *10% of ovine abortions in the UK
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| − | *Enteric organism of sheep, goats and cattle; faecal-oral transmission
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| − | *Ingestion during last trimester of pregnancy causes a bacteraemia
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| − | *Bacteria reach the uterus
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| − | *Necrotic placentitis causes late abortion, still birth or weak lambs
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| − | *Sporadic abortion in cattle
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| − | *Aborted lambs may have round necrotic lesions on surface of liver
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| − | *Aborting ewes source of infection for vulnerable animals
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| − | *Up to 20% of flock may abort
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| − | *Solid immunity developed
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| − | *S layer immunodominant antigen
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| − | *Diagnosis: hepatic lesions in lambs; presence of organisms in foetal abomasum; isolation and identification
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| − | *Treatment/control: isolate aborting ewes; destroy placenta; move other ewes to clean pasture; vaccinate flock with bacterin during outbreak and prophylactically; chlortetracycline in feed in an outbreak
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