Contagious Equine Metritis–Ohio Situation Report

March 5, 2009 at 5:03 pm

There are 17 States known to have exposed or positive stallions: Alabama, Delaware, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Michigan, Mississippi, Nebraska, North Carolina, Ohio, Texas, Washington, Wisconsin, and Wyoming. The exposure for most of the stallions has been co-location at a breeding facility with at least one positive stallion.  According to Dr. Leah Dorman, Assistant State Veterinarian Ohio Department of Agriculture:

Here in Ohio, we have had a total of 37 mares that have been exposed to CEM. Of these 37 mares: 18 have been released from quarantine (15 completed testing and three moved out of state to complete testing); eight have started the testing process; and 11 have not yet started testing. Ohio also has had 14 stallions that were exposed to CEM. Eight of these stallions have started the testing/treatment process. One stallion has completed the testing process and is negative.

The CEM fact sheet web link is:

Due to the fact that CEM is a foreign animal disease, state or federal animal health officials are required to train and witness testing and treatment protocols performed by veterinary practitioners. We have good cooperation from both the equine community and practicing veterinarians. Thanks for your interest and support.

For Ohio specific CEM-related questions, please contact either Dr. Leah Dorman at the Ohio Department of Agriculture (614-728-6220) or Dr. Daniel Harpster at USDA-APHIS-Veterinary Services (614-309-2832).


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