The Idaho State Department of Agriculture confirmed West Nile virus (WNV) in a 5-year-old Quarter Horse mare that had not been vaccinated. The mare started exhibiting neurologic signs on September 5 that progressed from severe ataxia to seizures and an inability to stand. The horse was euthanized.
For more information visit the Idaho State Department of Agriculture website.
![[Aggregator] Downloaded image for imported item #19769](https://s3.amazonaws.com/wp-s3-equimanagement.com/wp-content/uploads/2026/05/31141823/EDCC-Unbranded-11-scaled-1-768x512.jpeg)
