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.

Disease

Outbreak States

Start Date

End Date

West Nile Virus, Eastern Equine Encephalitis

Kalamazoo County, MI

Outbreak Identifier: 6478

Alert ID: 3954

September 17, 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: 2; Gender: Filly; Onset of Clinical Signs: 9/2/2024; Clinical Signs: Ataxia progressing to being recumbent; Confirmation Date: 9/11/2024; Horse Status: Euthanized; Vaccination Status: Vaccinated;

Comments: This horse was dually infected with both Eastern Equine Encephalitis AND West Nile Virus. The horse was vaccinated against both diseases on April 9, 2024 and received an initial series in the fall of 2022. She had no known other underlying health issues.;

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