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

Lanark County, ON

Outbreak Identifier: 5697

Alert ID: 3128

August 01, 2023

Confirmed Case(s) - No Quarantine

Source: OMAFRA

Number Confirmed: 1;
Number Exposed: Unknown;
Age: Yearling; Gender: Colt; Onset of Clinical Signs: 7/28/2023;
Clinical Signs: 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 (41°C) followed by recumbency and seizures. The colt had no history of travel. Laboratory diagnostic testing confirmed infection with the EEE virus (EEEV).; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

For more information, go to https://www.equinediseasecc.org/eastern-equine-encephalitis

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