• Fact Sheet 
Even when clinically ill horses recover from West Nile encephalitis, up to 40 percent of them may have residual effects, such as gait abnormalities and a change in their usual temperament or behavior.

• West Nile Virus in Horses Brochure 
An excellent source of general information on Horses and West Nile Virus.

• Surveillance and Reporting
The Michigan Department of Agriculture monitors for West Nile virus and other arboviruses (insect-borne viruses) in horses.

• WNV in Horses
Horses have proven uniquely susceptible to West Nile virus infection, comprising more than 99 percent of veterinary mammalian cases.

• Laboratory Testing
Live and dead horses suspected of having West Nile virus infection are tested at Michigan State University, Diagnostic Center for Population and Animal Health.

• FAQ on WNV in Horses
Frequently asked questions on West Nile virus in horses.

• Prevention
A vaccine to prevent West Nile virus and related diseases in horses is available through a licensed veterinarian.

• Eastern Equine Encephalitis (EEE) Testing in Michigan Horses, 2011 

• WNV Equine Testing Results
Results of West Nile virus testing for 2003-2008 on horses submitted to Michigan State University, Diagnostic Center for Population and Animal Health. Table is updated as data becomes available.

• West Nile Virus Equine Surveillance Maps
Maps of 2002-2010 West Nile virus testing results in horses submitted to Michigan State University, Diagnostic Center for Population and Animal Health.

• Eastern Equine Encephalitis Surveillance Maps
Maps of 2002-2010 Eastern Equine Encephalitis(EEE) testing results in horses.