

The colt lives in Adair County.

The horse lived in St. Lawrence County and was unvaccinated.

The horses reside in Bannock and Owyhee counties.

The horse resides in Graves County and is unvaccinated.

West Nile virus has infected more than 29,000 U.S. horses since 1999. Learn about the disease and how to protect your horses in this updated interactive feature.

The cases are located in Weber and Cache counties.

The horses lived in Lanark County and were euthanized.

The cases are located in Grant and Benton counties.

The horse lived in Elkhart County and was euthanized.

The case is located in Robeson County.

The horse lives in Jackson County and is recovering.

The cases are located in Archuleta and Arapahoe counties.

The horse lives in Todd County.

The cases are located in Ada, Bingham, and Franklin counties.

The horse lived in Ottawa and was euthanized.

The horse resides in Fond du Lac County.
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