As of November 22, 2025, the Equine Disease Communication Center (EDCC) has confirmed 1 EHV-1/EHM case in Colorado linked to the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event that took place in Waco Texas on November 5-9.

Will there be another confirmed cases (with or without clinical signs) in Colorado by December 31?

Resolves based on reporting by the EDCC at https://www.equinediseasecc.org/news/article/Equine-Herpesvirus-Myeloencephalopathy-(EHM)-Outbreak as of the last update on December 31, or reporting from the Colorado Department of Agriculture at https://ag.colorado.gov.

EHM Outbreak Counts | Equine Disease Communication Center