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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.



Waupaca County, WI
Outbreak Identifier: 7271
Alert ID: 4804
December 20, 2025
Confirmed Case(s) - Voluntary Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 
Number Suspected: 3; 
Number Exposed: 5; 
Facility Type: Private Facility; 

Horse 1: 
Age: 15; Gender: Mare; Breed: Paint; Onset of Clinical Signs: 10/31/2025; Clinical Signs: In hindsight, 3 other horses were likely infected, but did not show typical strangles signs of high fevers, nasal discharge, and swollen/draining lymph nodes. They showed edematous legs and/or a cough. They weren't very ill and all responded to treatment.; Confirmation Date: 11/6/2025; Horse Status: Recovered; Vaccination Status: Vaccinated;

Comments: This mare was vaccinated 9/23/25 for strangles. Subsequent testing showed this horse was infected with a wild strain, not a vaccine strain of Strep. equi.;