The Minnesota Board of Animal Health announced July 30 that West Nile virus (WNV) has been confirmed in four Minnesota horses through testing conducted by the U.S. Department of Agriculture’s National Veterinary Services Laboratories (NVSL) in Ames, Iowa.

Minnesota’s first confirmed WNV cases in horses involve single horses in Hennepin, Clay, Roseau, and Beltrami counties. The Board has confirmed that at least one of the horses died. Last week, the Minnesota Department of Health (MDH) found the virus in dead birds from Hennepin and Mille Lacs counties

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