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

Haldimand County, ON

Outbreak Identifier: 6601

Alert ID: 4071

October 23, 2024

Confirmed Case(s) - No Quarantine

Source: OMAFA

Number Confirmed: 1;
Number Exposed: Unknown;

Horse 1:
Age: 13; Gender: Mare; Breed: Pony; Onset of Clinical Signs: 10/9/2024; Clinical Signs: This pony mare developed a fever (40.5 C) on October 9 along with acute neurologic signs that progressed to recumbency. She was euthanized on October 10 after developing seizures.; Confirmation Date: 10/21/2024; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

Comments: This is the 24th case of equine EEE in Ontario this year. 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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