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The disease

Pathogenesis

 

Pathogenesis

 


Brucellosis is a disease of sexually mature animals. Males of cattle, sheep, and goats are susceptible but apparently do not venereally transmit B. abortus or B. melitensis. Male swine transmit B. suis, male sheep transmit B. ovis, and male dogs transmit B. canis through natural breeding. It has been proven that B. abortus may be transmitted via contaminated semen used in artificial insemination of cows.

There appear to be few differences in pathogenicity among preferential animal hosts for most biovars of Brucellae. Nevertheless, identification of Brucella species and the biovar are sometimes important in epidemiologic investigations since biovar characteristics appear to be consistent.