Difference between revisions of "Campylobacter fetus subspecies fetus"

Revision as of 21:30, 10 May 2010

Sporadic abortion in cows and sheep
10% of ovine abortions in the UK
Enteric organism of sheep, goats and cattle; faecal-oral transmission
Ingestion during last trimester of pregnancy causes a bacteraemia
Bacteria reach the uterus
Necrotic placentitis causes late abortion, still birth or weak lambs
Sporadic abortion in cattle
Aborted lambs may have round necrotic lesions on surface of liver
Aborting ewes source of infection for vulnerable animals
Up to 20% of flock may abort
Solid immunity developed
S layer immunodominant antigen
Diagnosis: hepatic lesions in lambs; presence of organisms in foetal abomasum; isolation and identification
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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-{{OpenPagesTop}}
+*Sporadic abortion in cows and sheep
-Also known as: '''''C. fetus — C. fetus subsp intestinalis'''''
+*10% of ovine abortions in the UK
+*Enteric organism of sheep, goats and cattle; faecal-oral transmission
-{{Taxobox
+*Ingestion during last trimester of pregnancy causes a bacteraemia
-|name               =''Campylobacter fetus''
+*Bacteria reach the uterus
-|phylum             =Proteobacteria
+*Necrotic placentitis causes late abortion, still birth or weak lambs
-|class              =Epsilon Proteobacteria
+*Sporadic abortion in cattle
-|order              =Campylobacterales
+*Aborted lambs may have round necrotic lesions on surface of liver
-|family             =Campylobacteraceae
+*Aborting ewes source of infection for vulnerable animals
-|genus              =[[:Category:Campylobacter species|Campylobacter]]
+*Up to 20% of flock may abort
-|species            =''C.fetus''
+*Solid immunity developed
-|Sub-species        =''fetus''
+*S layer immunodominant antigen
-}}
+*Diagnosis: hepatic lesions in lambs; presence of organisms in foetal abomasum; isolation and identification
-==Introduction==
+*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[[Category:Campylobacter_species]][[Category:Cattle]][[Category:Sheep]][[Category:Goat]]
-[[File:Campylobacter fetus 01.jpg|thumb|200px|right|''Campylobacter fetus'' Janice Carr, CDC 2004, Wikimedia Commons]]
-''Campylobacter fetus'', has the subspecies ''fetus'' and [[Campylobacter fetus subspecies venerealis|''venerealis'']], belonging to the genus [[Campylobacter species - Overview|''Campylobacter'']].
-''C. fetus'' is the cause of 10% of '''ovine abortions''' in the UK. It occassionally causes sporadic abortion in cattle and horses, but at a much lower incidence then in sheep.  It can also act in a similar way to [[Campylobacter jejuni|''C. jejuni'']] and cause enteritis in cattle, sheep, pigs and horses.
-The bacteria is an enteric organism of sheep, goats and cattle and is spread by faecal-oral transmission. The ingestion of ''C. fetus'' during last trimester of pregnancy causes a bacteraemia.
-The bacteria can reach the uterus and necrotic placentitis causes late abortion, still birth or weak lambs. Aborted lambs may have round necrotic lesions on the surface of their liver.
-Aborting ewes are therefore a source of infection for vulnerable animals and up to 20% of a flock may abort.
-A solid immunity may be developed. Birds can contribute to the spreading of infection.
-==Diagnosis==
-The presence of ''C. fetus'' may be diagnosed by:
-:hepatic lesions in lambs
-:the presence of organisms in the foetal abomasum and isolation and identification of the bacteria.
-==Treatment and Control==
-The aborting ewes should be isolated and other ewes should be moved to clean pasture. The placenta should be destroyed and the flock vaccinated with bacterin during the outbreak and prophylactically. During and outbreak, chlortetracycline should be added to the feed.
-{{Learning
-|literature search = [http://www.cabdirect.org/search.html?q=title%3A%28%22Campylobacter+fetus+fetus%22%29+OR+title%3A%28%22Campylobacter+fetus+subsp.+fetus%22%29+OR+title%3A%28%22Campylobacter+fetus+subspecies+fetus%22%29+ ''Campylobacter fetus'' subspecies ''fetus'']
-}}
-{{OpenPages}}
-[[Category:Campylobacter_species]]
-[[Category:Sheep Bacteria]][[Category:Horse Bacteria]][[Category:Cattle Bacteria]]
-[[Category:Reproductive Diseases - Sheep]]

Difference between revisions of "Campylobacter fetus subspecies fetus"

Revision as of 21:30, 10 May 2010

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