UPDATE: Vesicular Stomatitis Confirmed in Three Additional Texas Horses A horse with vesicular stomatitis.

Vesicular Stomatitis Diagnosed in Wyoming Horse, Attended Cheyenne Frontier Days

Wyoming is now the fifth state to have a horse that has tested positive for vesicular stomatitis.
The Wyoming Livestock Board says the affected horse was at the Cheyenne Frontier Days for five-days before the horse’s lesions were found. The horse was there to perform with an act and wasn’t stabled with the contestants’ horses.
The disease can move from animal to animal by contact or exposure to saliva or fluid from ruptured lesions. Fly control is also important since sand and black flies are believed to play a role in the transmission of the virus.
The infected horse returned to its Laramie County home where it is under quarantine, according to officials. There have been no other reports of horses with symptoms.
The disease can cause lameness and weight loss, according to state veterinarian Dr. Jim Logan. Symptoms include slobbering, blisters, sores and sloughing of skin in the mouth, on the tongue and muzzle, inside the ears and on the coronary band above the hooves.
The last confirmed case of VS in Wyoming was in 2006, although there have been cases this year in other states. The disease has been seen in Arizona, New Mexico, Texas, and Colorado since January.
There are 29 locations in six counties under quarantine in Colorado currently after horses, mules, and a cattle herd tested positive for VS. The counties affected are Delta, La Planta, Larimer, Las Animas, Montezuma, and Montrose counties.