The Virginia Department of Agriculture and Consumer Services (VDACS) reported Aug. 17 that a third horse has tested positive for equine herpesvirus-1 (EHV-1).

On Aug. 15, the VDACS announced that its Animal Health Laboratory in Warrenton confirmed EHV-1 in two horses from Culpeper County. One horse is undergoing supportive therapy at the Marion duPont Scott Equine Medical Center (EMC) in Leesburg and the other was euthanized.

The infected horses originated from a small private farm in Culpeper County. That farm and all exposed horses residing there were placed under quarantine.

On the evening of Aug. 16, a third horse on the quarantined farm developed a fever and subsequently tested positive for the neurologic strain of EHV-1, the VDACS said. The horse is under a veterinarian’s care and has not exhibited any other signs of disease