Wyoming Livestock Board staff veterinarians announced Oct. 21 that neurologic equine herpesvirus type 1 (EHV-1) has recently been reported at two premises in northwestern Wyoming. According to an agency press release, one affected premises is located in Teton County and the other in Park County.

Thach Winslow, DVM, Wyoming assistant state field veterinarian for field operations, said via e-mail that eight horses on the Teton County property have shown signs of EHV-1, one horse has been euthanized, and one horse has tested positive thus far. A total of eight horses are currently under quarantine on two premises, he said.

Meanwhile, in Park County, Winslow said two horses have tested positive for EHV-1, 36 horses have been exposed, and a total of 38 horses are quarantined on four premises.

Winslow said the Teton and Park County cases are unrelated

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