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

West Nile Virus

Dufferin County, ON

Outbreak Identifier: 6587

Alert ID: 4056

October 11, 2024

Confirmed Case(s) - No Quarantine

Source: OMAFA

Number Confirmed: 2;
Number Exposed: Unknown;
Facility Type: Boarding Facility;

Horse 1:
Gender: Mare; Breed: Paint; Onset of Clinical Signs: 9/29/2024; Clinical Signs: Two mares that shared a paddock developed ataxia on September 29. One mare was also hyperaesthetic and had twitching of the muzzle.; Confirmation Date: 10/10/2024; Horse Status: Recovered; Vaccination Status: Unvaccinated;

Comments: These are the 7th and 8th equine cases of WNV in Ontario this year. To see past and present WNV 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 WNV cases in Canada, go to: https://cahss.ca/cahss-networks/equine and enter the equine dashboard.;

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