A horse from Marion County, Oregon, has been euthanized after testing positive for equine herpesvirus-1 (EHV-1).

The Equine Disease Communication Center (EDCC) reported that the horse began showing acute neurologic signs on March 18 and was referred to the Oregon State University College of Veterinary Medicine for veterinary care.

“The diagnosis was made on March 20 by a positive test for both the EVH-1 wild type and neurotropic genetic markers,” the EDCC said. “When horse’s condition deteriorated, it was euthanized.”

The horse’s home facility was quarantined and biosecurity measures have been implemented

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