Three horses have now tested positive for equine herpesvirus-1 in Michigan, and one unrelated Pennsylvania horse tested positive for EHV-1 as well.
On March 19, the Michigan Department of Agriculture was notified of a Livingston County horse testing positive for EHV-1. That horse was euthanized.
As of April 2, two additional Michigan horses have tested positive for EHV-1. Both horses developed fevers and are under veterinary care. One of these additional positive horses is from the same Livingston County stable in which the index horse resided.