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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.



Waukesha County, WI
Outbreak Identifier: 7308
Alert ID: 4852
January 29, 2026
Confirmed Case(s) - Official Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 
Number Exposed: 45; 
Number Euthanized: 1; 
Facility Type: Private Facility; 

Horse 1: 
Age: 23; Gender: Gelding; Breed: Warmblood (WB); Onset of Clinical Signs: 1/26/2026; Clinical Signs: Acute onset neurologic signs; Confirmation Date: 1/28/2026; Horse Status: Euthanized; Vaccination Status: Vaccinated;

Comments: Affected equine had no recent travel history;