Animal HealthDiseasesContagious Equine Metritis

Contagious Equine Metritis


Contagious equine metritis (CEM) is a transmissible, exotic, venereal disease of horses. Thoroughbred horses tend to be more severely affected than other horse breeds. There is not evidence that CEM affects people.

The disease is highly contagious. Fortunately, the disease has not become established in the United States.

ReportContagious Equine Metritis is a reportable animal disease. Report any confirmed or suspected case to: MT State Veterinarian 406-444-2043 and MT USDA APHIS Veterinary Services 406-449-2220.

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Department of Livestock
Animal Health Division
PO Box 202001
Helena, MT 59620-2001
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