11/20/2025
HORSE OWNERS: EHM (Equine Herpesvirus Myeloencephalopathy) has been confirmed in Texas and Oklahoma. The disease had a rapid progression, high clinical severity, and a concerning number of mortalities among suspected EHM cases.
**No cases currently suspected or confirmed in Minnesota.**
Cases were confirmed at the 2025 WPRA World Finals and Elite Barrel Race event in Waco, Texas Nov. 5 - 9, 2025, and in horses who traveled from Waco to the BFA World Championship 2025 at the Lazy E Arena in Guthrie, Oklahoma.
Please contact the Board of Animal Health immediately if you or your horse had known contact with animals that were at these events.
Read the full Equine Disease Alert: https://content.govdelivery.com/accounts/MNBAH/bulletins/3fc306a