11/19/2025
AUSTIN, TX – The Texas Animal Health Commission (TAHC) received confirmation of equine herpes myeloencephalopathy (EHM), the neurologic disease linked to equine herpes virus (EHV-1), in a Texas Quarter Horse on November 18, 2025.
The horse attended the 2025 WPRA World Finals and Elite Barrel Race event in Waco, Texas on November 5-9, 2025. TAHC staff are working closely with event coordinators, equine owners, and veterinarians to respond to the outbreak, take measures to protect equine, and prevent the further spread of the virus. Additional participants of this event have been notified by the TAHC and are currently being monitored under hold orders.
View the full press release here:https://www.tahc.texas.gov/news/2025/2025-11-19_EHM-Waco.pdf