Disease alerts - Eastern Equine Encephalitis in Ontario, July 28, 2023 - Eastern Equine Encephalitis in Ontario, July 28, 2023 - Eastern Equine Encephalitis in Ontario, July 28, 2023

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Regulatory Category- Federal:

Reportable

Regulatory Category- Province or Territory:

Reportable

Animal Type:

Equine

Susceptible Animal Types:

Avian (Non-domestic);
Equine;
Human

Animal Class:

Terrestrial

Disease Agent:

Eastern equine encephalomyelitis

Disease Agent Type:

Virus

Organization:

Ontario Ministry of Agriculture, Food, and Rural Affairs (OMAFRA)

Region:

Ontario

Event Size:

1 individual

Problem(s):

Nervous systems signs

Topics:

Endemic;
Vector/Vector-borne

Start Date

Jul/28/2023

End Date

Jul/28/2023

Eastern Equine Encephalitis in Ontario, July 28, 2023

Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA)

On July 28, 2023, the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) was notified of a confirmed case of eastern equine encephalitis (EEE) in an unvaccinated 17-month old colt in Lanark County. The colt was euthanized after developing a fever (41⁰C) followed by recumbency and seizures. The colt had no history of travel. Laboratory diagnostic testing confirmed infection with the EEE virus (EEEV).

Veterinary Advisory