Changes

**Seminal vesicles, ampullae, testicles and epididymus infected in bulls; necrotising orchitis

**Seminal vesicles, ampullae, testicles and epididymus infected in bulls; necrotising orchitis

**Decreased fertility in cows and bulls; decreased milk production  

**Decreased fertility in cows and bulls; decreased milk production  

**Localisation in [[Spleen - Anatomy & Physiology|spleen]] and lymphatic tissue of non-pregnant animals

 

 

*Isolated from closed cases of [[Bursae and Tendons Inflammatory - Pathology#Poll Evil and Fistulous Withers|poll evil and fistulous withers]] in horses

 

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.

 

 

[[Category:To_Do_-_Clinical]]

[[Category:To_Do_-_Clinical]]