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

Bruce County, ON

Alert ID: 723

October 16, 2017

Source: Ontario Ministry of Agriculture, Food and Rural Affairs

On October 12, 2017, the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) was notified of a confirmed case of Eastern Equine Encephalitis (EEE) in a horse in Bruce County. The 12-year old unvaccinated mare with no travel history was euthanized following the sudden onset and progression of neurological signs. The horse was found down in the field, became unresponsive and was euthanized. A post-mortem examination was performed at the Animal Health Laboratory in Guelph, Ontario and EEE was confirmed by testing of brain tissue.

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