A stallion in Wisconsin has become positive stallion No. 23 in an ongoing investigation into contagious equine metritis (CEM).

Wisconsin State Veterinarian Robert Ehlenfeldt, DVM, said this horse is considered part of the outbreak that was first discovered in 2008 because he has the same strain of causative bacterium Taylorella equigenitalis as the other horses associated with that investigation.

He said the horse was probably exposed to T. equigenitalis during collection at a Wisconsin artificial insemination station in 2008, but was just recently identified because the owner did not want the animal to be tested.

"He has been under quarantine for an extensive period with an owner who was reluctant to test him," Ehlenfeldt explained.

Other positive stallions had been collected at the same facility, so this positive case came as no surprise to public officials, said James Barrett, public affairs specialist at the USDA.

Barrett said the extensive outbreak was winding down. In addition to the 23 positive stallions and five positive mares, another 966 horses were exposed to T. equigenitalis

This is very true that a stallion in Wisconsin has become positive stallion No. 23 in an ongoing investigation into contagious equine metritis (CEM). I always see all the horse related things on the horse classified website.

I havent heard of this disease can you tell me what it is ???