ehm in texas
In many horses, the first or only sign of EHV-1 infection is fever, which can go undetected. | Photo: The Horse Staff

The Equine Disease Communication Center (EDCC) reported April 17 that veterinarians have diagnosed a case of equine herpesvirus myeloencephalopathy (EHM), the neurologic form of equine herpesvirus-1 (EHV-1), in a Glasscock County, Texas, horse.

The 16-year-old Quarter Horse mare developed neurologic signs on April 14. She was quarantined after showing signs of ataxia and other neurologic signs consistent with EHM, and she was confirmed positive on April 16, the EDCC said.

The EDCC and the Texas Animal Health Commission (TAHC) noted that “the positive horse attended a seven-day event at the Brazos County Expo Center, in Bryan, Texas, starting on April 1. Following the event, the horse attended a three-day barrel racing event at the Taylor County Expo Center, in Abilene, Texas, starting on April 12. At that time, the expo center was also hosting a Region II High School Rodeo

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