The state of Minnesota has confirmed a case of neurologic equine herpesvirus at a boarding facility in Olmstead County. There is an official quarantine at the facility were 25 other horses were exposed. Neurologic herpesvirus is also known as equine herpesvirus myeloencephalopathy (EHM).
The 20-year-old Warmblood mare had onset of clinical signs on March 21 that included hind limb ataxia, flaccid tail and urinary bladder atony. She was confirmed positive for equine herpesvirus (EHV-1) on March 25. The vaccinated mare was euthanized.
For more information about equine herpesvirus myeloencephalopathy read this Fact Sheet.
Information for this report was provided by the Equine Disease Communication Center.