Exposure believed to have originated in Butte County

PIERRE, S.D. – Anthrax has been confirmed in a South Dakota beef herd currently located in Meade County. This is the first confirmed case of anthrax in 2026.

According to South Dakota’s State Veterinarian, Dr. Mendel Miller, the cow/calf herd initially began experiencing deaths while pastured in Butte County, where exposure is believed to have occurred, a news release from the Animal Industry Board (AIB) said.

According to the AIB, anthrax is a devastating disease for livestock which can cause rapid loss of animals in a short amount of time. Anthrax spores survive indefinitely in soil and significant weather events, such as drought, floods, and high winds, and can cause exposure leading to infection.

The Animal Disease Research and Diagnostic Laboratory at South Dakota State University confirmed the disease from samples submitted by the herd veterinarian, a news release said. In response, the AIB quarantined the affected herd, notified the neighboring herd owners, and says it will quarantine any additional herds impacted.

The cattle were later moved to Meade County where they continued to experience symptoms. The affected herd were vaccinated in response to the diagnosis.

Producers that suspect anthrax in their herds should contact their local veterinarian.