Helena, Mont. – On Wednesday, January 5, 2022, the Montana Department of Livestock received notice that an animal from a Madison County herd located within Montana’s brucellosis Designated Surveillance Area (DSA) has been confirmed positive for brucellosis.

The positive animal tested as a ‘suspect’ on a whole herd test conducted in December 2021. Pathologists at the Montana Veterinary Diagnostic Laboratory collected tissues and forwarded the samples to the National Veterinary Services Laboratories in Ames, Iowa where infection was subsequently confirmed. The ranch has been placed un...