The Wisconsin Department of Agriculture, Trade and Consumer Protection is actively monitoring the current outbreaks of equine herpesvirus myeloencephalopathy (EHM), the neurologic form of equine herpesvirus-1 (EHV-1) in neighboring states. While we have no reported cases in Wisconsin at this time, we are aware of several upcoming shows taking place about which horse owners should be aware if they planned to visit these shows.
EHV-1 has been detected in Illinois and Iowa after some of those horses attended a show and returned to their home barns. Some of these horses have been euthanized, but others are being treated for the disease.
Equine herpesvirus is a reportable disease in Wisconsin. Veterinarians should contact the Department when they detect the disease in a client’s horse. Show organizers and show veterinarians should also be aware that horses being imported into Wisconsin are required to have a current Certificate of Veterinary Inspection (CVI) and a negative EIA test. Detailed requirements can be found at datcp.wi.gov.