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

Genesee County, MI

Outbreak Identifier: 4950

Alert ID: 2295

October 14, 2021

Confirmed Case(s) - No Quarantine

Source: Michigan Department of Agriculture and Rural Development

Number Confirmed: 1;

Age: 12; Gender: Mare; Breed: Paint/Arabian cross; Onset of Clinical Signs: 9/30/2021;
Clinical Signs: Ataxia, reluctance to move, inability to swallow and open her mouth, which progressed to the inability to get up; Horse Status: Euthanized; Vaccination Status: Undervaccinated;
Notes: Horse was reportedly vaccinated by the owner, but the vaccination was given over five years ago. For more information go to: EEE factsheet

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