Consider using stone or landscaping to reduce or eliminate hoofprints, where mosquitoes might breed. Topical preparations containing mosquito repellents are available for horses. Read the label before using the product, and follow all instructions. Stable premises can be fogged in the evening to reduce the number of mosquitoes. Summary West Nile virus is new to the United States.
Research is in progress to learn more about West Nile encephalitis.
Horse owners should stay abreast of information and resources concerning this disease, especially if it is detected in their area. For the most current information, consult reliable sources and Web sites such as the ones noted on page 4 of this fact sheet. The West Nile virus represents a very real threat to horses because it is spread by mosquitoes and because no antiviral treatments or vaccinations exist for its control. Although many infections last only a short time and result in no illness or mild signs with a complete recovery, the disease can be deadly. Thus, horse owners should take precautions to minimize exposure to mosquitoes and should monitor their animals for encephalitic signs.