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{{Taxobox
{{Taxobox
|name =''Brucella abortus''
|name =''Brucella abortus''
''Brucella abortus'' is a species of the ''[[Brucella species - Overview|Brucella]]'' bacteria genus and causes [[Brucellosis - Cattle|bovine brucellosis]]. It mainly affects cattle, where transmission is by ingestion and abortion occurs in the last half of pregnancy. The placenta is covered by fibrinonecrotic tissue and the foetus often shows bronchopneumonia.
''Brucella abortus'' is a species of the ''[[Brucella species - Overview|Brucella]]'' bacteria genus and causes [[Brucellosis - Cattle|bovine brucellosis]]. It mainly affects cattle, where transmission is by ingestion and abortion occurs in the last half of pregnancy. The placenta is covered by fibrinonecrotic tissue and the foetus often shows bronchopneumonia.
''B.abortus'' uncommonly localises in joints, usually in '''carpal bursitis (hygroma)''' in cattle and '''bursitis''' in horses. Also in spleen and lymphatic tissue of non-pregnant animals. It has been isolated from closed cases of [[Bursae and Tendons Inflammatory - Pathology#Poll Evil and Fistulous Withers|poll evil and fistulous withers]] in horses.
''B.abortus'' uncommonly localises in joints, usually in [[Capped Joints|'''carpal bursitis (hygroma)]]''' in cattle and '''bursitis''' in horses. Also in spleen and lymphatic tissue of non-pregnant animals. It has been isolated from closed cases of [[Poll Evil and Fistulous Withers|poll evil and fistulous withers]] in horses.
==Control==
==Control==
Vaccination of heifers against ''B. abortus'' in endemic regions by Strain S19, a live attenuated vaccine, stimulating a cell-mediated immune response. The vaccination of young animals interferes with serological testing. The 45/20 bacterin vaccine is less effective and the newer RB51 vaccine has no LPS O-antigen therefore not detected by serological tests and gives good protection.
Vaccination of heifers against ''B. abortus'' in endemic regions by Strain S19, a live attenuated vaccine, stimulating a cell-mediated immune response. The vaccination of young animals interferes with serological testing. The 45/20 bacterin vaccine is less effective and the newer RB51 vaccine has no LPS O-antigen therefore not detected by serological tests and gives good protection.
==Literature Search==
{{Learning
|literature search = [http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=%22Brucella+abortus%22&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&publishedstart=2000&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all&x=43&y=8 ''Brucella abortus'' publications since 2000]
}}
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[[Category:Brucella species]]
[[Category:Expert_Review]]
[[Category:Expert_Review]]