The Michigan Department of Agriculture Animal Industry Division maintains an active surveillance and communication system with private veterinarians in Michigan for detection of equine arbovirus cases. Arboviruses affecting equidae in Michigan include West Nile Virus (WNV), Eastern Equine Encephalitis (EEE) virus, and Western Equine Encephalitis (WEE) virus. Equine veterinarians are contacted by telephone on a weekly or every-other-week schedule to provide them with arbovirus activity updates and to discuss cases within their practices that may potentially be arboviral encephalitides.

If you would like to report a case of WNV in domestic animals (horses, livestock, pets), please contact Dr. Steve Halstead at (517) 373-1077.

Downloadable Equine Arbovirus Encephalitis Reporting Form