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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West Nile Virus

Midland County, MI

Outbreak Identifier: 4793

Alert ID: 2158

August 10, 2021

Confirmed Case(s) - No Quarantine

Source: Michigan Department of Agriculture and Rural Development

Number Confirmed: 1;
Age: 28; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 7/15/2021;
Clinical Signs: Ataxia, Progressing to recumbency, Unable to Rise; Confirmation Date: Not Reported; Horse Status: Euthanized; Vaccination Status: Undervaccinated;
Notes: A horse in Midland County has tested positive for West Nile Virus. For more information about West Nile Virus go to the WNV factsheet.

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