Outbreaks | Equine Disease Communication Center

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.

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Equine Herpesvirus- Neurologic

Washington County, MN

Outbreak Identifier: 7260

Alert ID: 4793

December 13, 2025

Confirmed Case(s) - Official Quarantine

Source: State Animal Health Official

Number Confirmed: 1;
Number Exposed: 27;
Facility Type: Boarding Facility;

Horse 1:
Age: 12; Gender: Mare; Breed: Warmblood (WB); Onset of Clinical Signs: 12/9/2025; Clinical Signs: Hind limb ataxia and decreased anal tone.; Confirmation Date: 12/11/2025; Horse Status: Affected And Alive;

Comments: Horse is being treated and showing signs of improvement.This case is not linked to the outbreak originating at the WPRA in Waco, Texas.;

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