Difference between revisions of "Brucellosis - Cattle"
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**Caused by ''Brucella abortus'' | **Caused by ''Brucella abortus'' | ||
Revision as of 15:11, 23 July 2010
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This article is still under construction. |
- Caused by Brucella abortus
- Eradicated in many countries including UK
- Infection usually by ingestions but also venereal, skin abrasions, inhalation, transplacental
- Abortion storms in susceptible herds
- Abortion after fifth month of gestation due to placentitis
- Brucellae excreted in foetal fluids for 2-4 weeks following abortion and at subsequent parturitions without abortion
- Infection of mammary glands and lymph nodes persists for years
- Excreted intermittently in milk for years
- Seminal vesicles, ampullae, testicles and epididymus infected in bulls; necrotising orchitis
- Decreased fertility in cows and bulls; decreased milk production
- Localisation in spleen and lymphatic tissue of non-pregnant animals
- Occasionally causes arthritis
- Isolated from closed cases of poll evil and fistulous withers in horses