The Department of Livestock Reports Brucellosis Found in Madison County Herd

On Monday, December 30th the Montana Department of Livestock reported that a single cow on a Madison County ranch within Montana’s brucellosis Designated Surveillance Area (DSA) has been confirmed positive for brucellosis.

The brucellosis-infected cow was identified during a voluntary whole-herd test. The animal was euthanized, and infection was subsequently confirmed at the National Veterinary Services Laboratories in Ames, Iowa when the bacteria was cultured from tissue collected from the animal. The ranch has been placed under quarantine and an epidemiological investigation has begun....