Arizona has three newly confirmed positive equine premises: two in Cochise County and one in (newly infected) Santa Cruz County.
New Mexico has one newly confirmed positive equine premises, in Dona Ana County.
Texas has three newly confirmed positive premises, two of which involve equines: one each in Hudspeth and Kerr counties, both of which are newly infected. In addition, McMullen County is newly infected, with one confirmed positive cattle premises.
Since its last Situation Report on May 14, 12 premises have been released from quarantine: three in Arizona (one each in Cochise, Gila, and Pima counties); two in New Mexico (Dona Ana County); and seven in Texas (one in El Paso County, four in Starr County, and two in Zapata County).
Premises with confirmed positive and suspect cases are quarantined and monitored by veterinarians for at least 14 days from the onset of lesions in the last animal affected on the premises.
Vesicular stomatitis virus can cause blisters and sores in the mouth and on the tongue, muzzle, teats, or hooves of horses, cattle, swine, sheep, goats, llamas, and a number of other animals. Lesions usually heal in two or three weeks.
Because of the virus’ contagious nature and its resemblance to other diseases such as foot-and-mouth disease, animal health officials urge livestock owners and caretakers to report these symptoms to their veterinarian immediately. Most animals recover with supportive care by a veterinarian.
“Vesicular stomatitis has been conﬁrmed only in the Western Hemisphere,” APHIS said on its website. “It is known to be an endemic disease in the warmer regions of North, Central, and South America, and outbreaks of the disease in other temperate geographic parts of the hemisphere occur sporadically. The Southwestern and Western United States have experienced a number of vesicular stomatitis outbreaks, (and) the most recent and largest VS outbreak occurred in 2015. Outbreaks usually occur during the warmer months, often along waterways.”
Some states and other countries might restrict movement of, or impose additional requirements for, susceptible animals from states having known VS cases. Before moving livestock, contact the state of destination for its requirements.