The Texas Animal Health Commission (TAHC) has confirmed July 21 that additional horses on three central Texas premises have tested positive for vesicular stomatitis (VS).

One premises is located four miles east of Webberville in Bastrop County, one premises is located one mile northwest of Webberville in Travis County, and one premises is located eight miles southeast of Seguin in Guadalupe County. Thus far in 2014, animals residing on 13 premises in eight Texas counties—including Kinney, Hidalgo, San Patricio, Nueces, Jim Wells, Bastrop, Travis, and Guadalupe—have tested positive for VS.

The newly identified infected premises are currently under TAHC quarantine, and affected horses will be monitored by regulatory veterinarians while under quarantine. Premises are eligible for quarantine release 21 days after all lesions have healed. There is no known exposure to other horses around the state, or at any equine events.

The current VS situation in Texas began May 28, when officials confirmed the nation's first equine VS cases of the year when five Kinney County horses tested positive. In early June officials confirmed that horses residing on two premises in Hidalgo County had tested positive for the virus, and in mid-June horses residing on two San Patricio County premises tested positive for the disease. In late June and early July, official reported that two premises in Nueces County had been quarantined for equine VS. Shortly thereafter, on July 8, cattle residing in Jim Wells County tested positive for VS, and on July 11, officials announced that horses residing on two premises—one in Bastrop Country and one in Travis County had tested positive for the disease