The New Mexico Livestock Board has announced that a quarantine put in place after a horse residing at Ruidoso Downs tested positive for equine herpesvirus-1 (EHV-1) has been lifted.

The release comes after 14 days with no new EHV-1 cases.

The affected horse tested positive for the virus on June 17 and was euthanized the same day. Since then, the barn in which the horse was located was placed under quarantine—no horses in, no horses out. 

Herpesvirus is highly contagious among horses and can cause a variety of ailments in equids, including rhinopneumonitis (a respiratory disease usually found in young horses), abortion in broodmares, and myeloencephalopathy (the neurologic form). In many horses, fever is the only sign of EHV-1 infection, which can go undetected