Breaking News
Input From the Horse Industry Needed to Support USDA Study
Learn More

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.



Jefferson County, WI
Outbreak Identifier: 7305
Alert ID: 4849
January 28, 2026
Confirmed Case(s) - Voluntary Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: 40; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 21; Gender: Mare; Breed: Trakhener; Usage: Pleasure Riding; Clinical Signs: fever, decreased appetite, mandibular lymph node abscessation, pharyngeal swelling; Confirmation Date: 1/20/2026; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;