Introduction

What is it?
  • Vesicular Stomatitis (VS) is a viral disease that causes a mild fever, and the formation of blister-like lesions on the inside of the mouth, and on the lips, nose, hooves and udder of domestic livestock and wildlife in the Western Hemisphere.
  • Vesicular Stomatitis is of significance concern to regulatory veterinary medicine because the clinical signs of VS are indistinguishable from Foot and Mouth Disease (FMD) in ruminants and swine, which has potential devastating negative impacts on livestock production.
  • Due to the similarity of VS to FMD, VS is a reportable disease in Canada and worldwide CFIA Link
  • Canadians traveling in the U.S.A. with horses may find border closures to horse traffic if an outbreak occurs.
  • This site is designed to inform and allow the travelling horseman up to date information on the status of Vesicular Stomatitis in Canada and the U.S.A.
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Susceptible Species:
  • Horses are the primary species affected during outbreaks of VS followed by cattle. VS has the greatest impact on the movement of horses between Canada and the United States.
  • Other domestic animals – cattle and swine (sheep and goat rarely)
  •  Wildlife species – white-tailed deer and South American camelids
  • Humans – VS is potential zoonotic disease
Distribution:
  • Not currently occur in Canada
  • Last reported case in Canada was 1948
  • Occurrence is limited to the United States and South America
  • Outbreaks in US typically occur during from late spring to early fall and disappears with the first killing frost.
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