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

Lanark County, ON

Outbreak Identifier: 5906

Alert ID: 3346

September 22, 2023

Confirmed Case(s) - No Quarantine

Source: OMAFRA

Number Confirmed: 1;
Number Exposed: Unknown;
Gender: Mare; Onset of Clinical Signs: 8/30/2023;
Clinical Signs: This was a mature mare that started showing acute neurologic signs (stiff, unwilling to move, progressive ataxia) on August 30 and was euthanized August 31.; Confirmation Date: 9/13/2023; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

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