Brucella abortus

**Definition:** A species of the genus BRUCELLA whose natural hosts are cattle and other bovidae. Abortion and placentitis are frequently produced in the pregnant animal. Other mammals, including humans, may be infected.

**Tree numbers:** - B03.440.400.425.215.500.100 - B03.660.050.070.100.100

**Synonyms:** - Bacterium abortus - Brucella melitensis biovar abortus