Newly Identified VSV-Affected Premises Total 42
On Sept. 5, the United States Department of Agriculture (USDA) issued its latest Situation Report about vesicular stomatitis virus (VSV)-affected states and counties. Since its last situation report on Aug. 29, the agency identified 42 new VSV-affected premises, with 11 confirmed positive and 31 suspect.

Newly infected counties (with number of confirmed positive or suspect premises) include:

Colorado: Dolores (one confirmed)

Nebraska: Morrill (one confirmed)

Texas: Hill (one confirmed)


  • Big Horn (one confirmed)
  • Park (one confirmed positive, six suspect)

Also since the Aug. 29 Situation Report, the following confirmed or suspect premises have been released from quarantine:

  • Colorado: 98
  • Nebraska: 3
  • New Mexico: 2
  • Texas: 18
  • Utah: 6
  • Wyoming: 6

VS 101

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 their requirements.