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Equine Herpesvirus case in Wyoming

June 25, 2011


A horse has been diagnosed with the neurological form of Equine Herpesvirus 1 in Wyoming.

State veterinarian Dr Jim Logan said this week that diagnostic tests at the Wyoming State Veterinary Laboratory had confirmed the case in a horse from Johnson County.

The animal was not linked to the Utah cutting horse event that resulted in the recent outbreak across western states. He described it as a totally separate event.

Logan said the positive horse had been isolated from other horses on the premises and the location was under quarantine.

Another horse from the premises was euthanised due to symptoms of EHV-1 and diagnostic tests on that animal were pending.

Logan reminded horse owners that there had been sporadic cases reported nationwide over the past several years.

"The virus is very common in horse populations and is found wherever horses are located.

"The virus is also known as Equine Rhinopneumonitis and in addition to causing the neurologic syndrome, it can cause respiratory symptoms, weak foals, and late-term abortion in pregnant mares.

"This is not an uncommon disease, and is not a new disease.

"It is important for all horse owners to remain vigilant of their horses' health and to follow good husbandry, sanitation, and biosecurity practices.

"At this time there is little reason to cancel events or restrict movement of horses other than those under quarantine since this appears to be an isolated incident."



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