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Disease Alerts

Updates on current disease outbreaks are listed here 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.



Montrose County, CO
Outbreak Identifier: 6961
Alert ID: 4477
August 12, 2025
Confirmed Case(s) - No Quarantine

State Veterinarian

Number Confirmed: 1; 
Number Exposed: 8; 
Number Euthanized: 1; 
Facility Type: Farm; 

Horse 1: 
Age: 1; Gender: Mare; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 7/31/2025; Clinical Signs: Weakness Anorexia Abnormal Mentation Unable to Rise; Horse Status: Euthanized; Vaccination Status: Unvaccinated;