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

United Counties of Leeds and Grenville, ON

Outbreak Identifier: 6364

Alert ID: 3843

August 15, 2024

Confirmed Case(s) - No Quarantine

Source: OMAFRA

Number Confirmed: 1;
Number Exposed: Unknown;

Horse 1:
Age: Yearling; Gender: Filly; Breed: Quarter Horse (QH); Clinical Signs: This filly was clinically normal on the morning of Aug 12 but by evening was lethargic and ataxic with progressive neurologic signs. She had received her initial EEE vaccination and booster in May 2024.; Confirmation Date: 8/15/2024; Horse Status: Deceased;

Comments: To see past and present EEE cases in Ontario go to: https://www.oahn.ca/resources/ontario-equine-disease-alerts/ and enter the disease surveillance portal. To see past and present EEE cases in Canada, go to: https://cahss.ca/cahss-networks/equine and enter the equine dashboard;;;

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