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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Eastern Equine Encephalitis

Allegan County, MI

Outbreak Identifier: 6486

Alert ID: 3962

September 18, 2024

Confirmed Case(s) - No Quarantine

Source: Michigan Department of Agriculture and Rural Development

Number Confirmed: 1;
Number Exposed: Unknown;
Number Euthanized: 1;

Horse 1:
Age: 5; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 8/26/2024; Clinical Signs: ataxia, circling to the right, head pressing, seizures; Confirmation Date: 9/17/2024; Horse Status: Euthanized; Vaccination Status: Vaccinated;

Comments: This horse was acquired by the most recent owner on August 18, 2024, and was reportedly vaccinated by the prior owner in the spring. No other vaccinations are known to have been administered to this animal since.;

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