06/15/2023
California has recently reported its first-time incursion of vesicular stomatitis (VSV) in over 50 years. Since the start of the outbreak in May, 77 VSV-affected premises have been identified (29 confirmed positive, 48 suspect).
Vesicular stomatitis is a viral disease of horses, donkeys, mules, cattle, swine and New World camelids that occurs in the Western Hemisphere. The disease is named for the characteristic vesicular lesions it causes in the form of blisters, crusts and ulceration of the lips, muzzle, nose, tongue, ears, sheath, teats, and/or coronary band. The virus is transmitted by biting midges and therefore is seasonal.
Because VSV is not a common occurrence in most areas every year, reports of Vesicular Stomatitis in the media often raise questions among livestock and horse owners. Visit the Disease Communication Center's website to learn more about VSV and to find updates on current disease outbreaks: https://www.equinediseasecc.org/vesicular-stomatitis
As always, your horse doctor remains your best source of information and resources. By working closely with your equine veterinarian you can develop strategies to reduce the likelihood of a Vesicular Stomatitis outbreak at your facility or to minimize the effects should one occur.