Contagious Equine Metritis

Contagious equine metritis (CEM) is a transmissible venereal disease in horses, caused by a bacterium called Taylorella equigenitalis. CEM is highly contagious and can have a devastating effect on equine reproductive activity. This disease occurs naturally only in horses, and all breeds are susceptible

In Canada, CEM is a reportable disease under the Health of Animals Regulations, and all cases must be reported to the Canadian Food Inspection Agency (CFIA).

Information we provide for producers and the livestock sector includes: