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.

Disease

Outbreak States

Start Date

End Date

Eastern Equine Encephalitis

United Counties of Leeds and Grenville, ON

Outbreak Identifier: 6353

Alert ID: 3833

August 12, 2024

Confirmed Case(s) - No Quarantine

Source: OMAFRA

Number Confirmed: 1;
Number Exposed: 8;
Facility Type: Private Facility;

Horse 1:
Age: Suckling Foal; Gender: Filly; Onset of Clinical Signs: 8/1/2024; Clinical Signs: This 2 to 3 month old filly showed acute and progressive neurologic signs on Aug 1 and was euthanized on Aug 2. Serum EEE IgM was positive.; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

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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