Because of the cross-reaction of the LPS (Lipo poly Saccharide) of Brucella abortus. B. militensis and B. suis, only one antigen is used for serological diagnosis. Virtually all agglutination tests use the B. abortus antigen. There is no need to test with B. militensis.

An abortus is an obsolete term for the act of abortion, or an aborted foetus, particularly one aborted in the early stages of pregnancy.

Brucella abortus is a gram-negative bacterium found in cattle. It is a blood borne pathogen that causes premature abortion. It can be transferred from an animal to a human. It is possible for B. abortus to be spread from wild populations of elk and bison into domestic cattle herds. It can be prevented by vaccination of cattle.

The test ring in a heat exchanger is the seal, that keeps the water from the heating container. The test ring should be changed every year.

Dr. Bernhard Bang, a Danish veterinarian,identified the causative agent of Brucellosis; the diagnostic test for Brucella infection is called the Bang's test in his honor.