The Tennessee Department of Agriculture (TDA) has received reports of suspected cases of equine herpesvirus (EHV-1) infection in horses that participated in a recent trail ride in Tennessee.

Six to eight suspected cases of the neurological form of EHV-1 have been reported to the state veterinarian’s office. Horses are being treated, isolated, and monitored by their attending veterinarian.

The affected horses might have been exposed to EHV-1 during the Bucksnort Trail Ride, held April 23-30 in Humphreys County. The event drew approximately 100 horses from multiple states. The movement of horses that attended the event is being restricted on a case by case basis.

TDA animal health officials are working with event organizers, neighboring state veterinarians, and private veterinarians to identify other horses that may have been exposed or are exhibiting clinical signs of disease