May 17, 2011 7:32 PM by Greg Boyce
DENVER (AP) - Officials say Colorado has three confirmed cases of a fatal horse virus.
The state agriculture department said Tuesday that test results are pending on another nine showing signs of the disease. One of the infected horses was euthanized after showing severe neurological symptoms.
Colorado is requiring permits for any horses being brought into the state because of the outbreak of equine herpes virus. Officials say horse owners who want to transport their animals should call their veterinarian. The veterinarian will have to call the agriculture department to request a permit number to be added to the horse's health certificate, already required for entry.
The cases have led to cancellation of riding clinics at Colorado State University's equine center and closure of the Eagle County fairgrounds to horses.