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Vesicular Stomatitis Virus (VSV)

Vesicular Stomatitis (VSV) is a viral disease that primarily affects cattle, horses, mules, donkeys, swine and occasionally sheep, goats, llamas, and alpacas. Humans are rarely infected with handling infected animals. Click here for more information on vesicular stomatitis.

Important information for veterinarians:

Veterinarian Submission Guidlines


VSV is a reportable disease, please call our office at (303)869-9130 as soon as possible to report suspicion of disease.


Place a hold order on the premises as soon as VS is suspected, in order to restrict the movement of affected and exposed animals.

  1. TEST - Collect both swab and serum

When sampling horses for vesicular stomatitis, please obtain a swab of the affected area AND draw blood to obtain serum for a CF test.


Health Certificates

Colorado veterinarians and livestock owners should contact the state of destination when moving livestock interstate to ensure that all import requirements are met. States may impose certain restrictions for horses and livestock coming from VSV affected states. Visit this website for a list of contact information for all state veterinarians’ offices.

If the destination state requires you to certify that the livestock do not originate within a specified distance of a VSV-quarantined premises (for example a 10 mile circle), call our office at 303-869-9130. One of our staff can map the location of your client and the location of the nearest quarantine so you can ensure they meet the destination state requirements.


VSV: Symptoms & Prevention in Cattle

VSV: Symptoms & Prevention in Horses

Purdue Extension Fly Control for Dairy Farms

University of Nebraska: Horse Insect Control Guide

Nebraska Management Guide for Insect Pests of Livestock and Horses

Vesicular Stomatitis Guidelines for Shows and Fairs

VSV Investigation Information for Owners

Confidentiality of Livestock Location Information

*C.R.S. Reference for Confidentiality of Livestock Information Title 35, Article 57.9, Sections 101 — 104) Colorado Revised Statutes are made available for public use by the Committee on Legal Services of the Colorado General Assembly through a contractual arrangement with the LexisNexis Group. Any person wishing to reprint and distribute all or a substantial part of the statutes in either printed or electronic format must obtain prior permission of the Committee on Legal Services; permission is not required to reprint fewer than 200 sections of C.R.S. (§2-5-118, C.R.S.). The Lexis Nexis website is the only official source of the Colorado Revised Statutes.