A horse in Douglas County, Colo., has tested positive for equine herpesvirus-1, according to a statement from the Colorado Department of Agriculture (CDA), and the facility at which the horse resided has been placed under quarantine.

The horse was recently transported from Iowa by a private owner and was euthanized after showing "severe neurologic signs associated with the disease," according to the CDA release. The positive test result came on May 11, said Kate Anderson, DVM, program administrator of the CDA Bureau of Animal Protection.

Anderson told TheHorse.com that all other horses that had been in contact with the affected animal are quarantined and are being monitored closely for signs of disease or an elevated temperature. Anderson said that none of the other horses have shown signs of disease at this point.

"The Department is taking quick and appropriate actions to control and mitigate this disease," added State Veterinarian Keith Roehr, DVM. "We will continue to trace the movement of this horse and those horses it came into contact with in order to protect Colorado’s equine industry