Disease alerts - Eastern Equine Encephalitis in Ontario, September 30, 2024 - Eastern Equine Encephalitis in Ontario, September 30, 2024 - Eastern Equine Encephalitis in Ontario, September 30, 2024

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Regulatory Category- Federal:

Immediately Notifiable

Regulatory Category- Province or Territory:

Immediately Notifiable

Animal Type:

Equine

Susceptible Animal Types:

Equine

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

Sep/30/2024

End Date

Sep/30/2024

Website

Equine Disease Communication Center

Eastern Equine Encephalitis in Ontario, September 30, 2024

Ontario Ministry of Agriculture, Food and Agribusiness (OMAFA)

Eastern Equine Encephalitis (EEE) has been confirmed in the United Counties of Stormont, Dundas and Glengarry, Ontario. On September 5, 2024, a 3 year old filly was noticed to be ataxic with an abnormally quiet demeanor and fever (41C). Despite supportive treatment, she died on September 7, 2024. EEE was confirmed on September 30, 2024. The horse was not vaccinated against EEE. This is the 19th case of equine EEE in Ontario this year.