Confirmed Case(s) – Official Quarantine
Source: Attending Veterinarian
Number Confirmed: 2;
Number Exposed: Unknown;
Number Euthanized: 1;
Facility Type: Private Facility;
Horse 1:
Gender: Gelding; Breed: Quarter Horse (QH); Usage: Barrel Racing; Onset of Clinical Signs: 11/18/2025; Clinical Signs: Weak rear end Depression / Lethargy; Confirmation Date: 11/19/2025; Horse Status: Isolated; Vaccination Status: Status Unknown;
Horse 2:
Breed: Quarter Horse (QH); Clinical Signs: Neurologic signs; Horse Status: Euthanized;
Comments: Both cases are associated with the EHM outbreak that originated at the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event.
For an up-to-date count of EHM cases tied to this outbreak, please visit HERE
For more information go to: https://www.equinediseasecc.org/equine-herpesvirus
See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts
Updates on current disease outbreaks are listed on our EDCC website as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received. All information is sourced from: http://equinediseasecc.org/alerts/outbreaks