Texas and Oklahoma continue to identify confirmed cases of vesicular stomatitis (VS), primarily affecting horses and cattle. A total of 64 new premises in Colorado and 11 new premises in Texas have reported confirmed VS cases.

To date, a total of 186 VS-positive premises have been identified, with 133 in Colorado and 53 in Texas. On May 28, the Texas Animal Health Commission (TAHC) announced confirmation of the nation’s first case of VS this year in horses in Kinney County, according to Drovers CattleNetwork.

Signs of VS include blisters, excessive saliva and sores on horses, cattle, bison, sheep, goats, pigs, llamas and other animals. In rare cases, VS affects humans—typically those in contact with infected animals—with flu-like symptoms.

Fly control on the premise is key in preventing the spread of the virus within the herd. Several states have revised their livestock import requirements to help protect against the spread of the disease. To view the list of states and their requirements, click here.