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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Strangles

Regional Municipality of Halton, ON

Outbreak Identifier: 6802

Alert ID: 4304

April 10, 2025

Confirmed Case(s) - Voluntary Quarantine

Source: OMAFA

Number Confirmed: 1;
Number Exposed: 5;

Horse 1:
Age: 7; Gender: Mare; Breed: Quarter Horse (QH); Clinical Signs: This mare was stalled next to a horse that arrived back from training at a facility that had a respiratory illness. She developed clinical signs of strangles and tested positive by PCR and culture.;

Comments: The farm owner has instituted voluntary animal movement restrictions and biosecurity protocols. To see past and present Strangles cases in Ontario go to: https://www.oahn.ca/resources/ontario-equine-disease-alerts/ and enter the disease surveillance portal.

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