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| − | {{unfinished}}
| + | #REDIRECT[[Bovine Brucellosis]] |
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| − | **Caused by ''Brucella abortus''
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| − | **Eradicated in many countries including UK
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| − | **Infection usually by ingestions but also venereal, skin abrasions, inhalation, transplacental
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| − | **Abortion storms in susceptible herds
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| − | **Abortion after fifth month of gestation due to placentitis
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| − | **Brucellae excreted in foetal fluids for 2-4 weeks following abortion and at subsequent parturitions without abortion
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| − | **Infection of mammary glands and lymph nodes persists for years
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| − | **Excreted intermittently in milk for years
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| − | **Seminal vesicles, ampullae, testicles and epididymus infected in bulls; necrotising orchitis
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| − | **Decreased fertility in cows and bulls; decreased milk production
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| − | 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.
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| − | [[Category:To_Do_-_Clinical]] | |