As of Wednesday, the Colorado Department of Agriculture’s State Veterinarian’s Office has 205 locations under quarantine after horses and cows tested positive for Vesicular Stomatitis (VS); 17 of the 222 total quarantines have now been released. Fortunately for Northwest Colorado farmers and ranchers, none of the outbreaks were in this part of the state. The cases were reported in Adams, Boulder, Broomfield, Douglas, El Paso, Jefferson, Larimer and Weld Counties. VS can be painful for animals and costly to their owners. The virus typically causes oral blisters and sores that can be painful causing difficulty in eating and drinking. In Colorado, there have been 313 horses and 7 cows that tested positive for VS. Veterinarians and livestock owners who suspect an animal may have VS or any other vesicular disease should immediately contact State or federal animal health authorities. Livestock with clinical signs of VS are isolated until they are healed and determined to be of no further threat for disease spread. There are no USDA approved vaccines for VS.