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

Grey County, ON

Outbreak Identifier: 7285

Alert ID: 4824

January 07, 2026

Confirmed Case(s) - Voluntary Quarantine

Source: OMAFA

Number Confirmed: 1;
Number Suspected: 3;
Number Exposed: Unknown;

Horse 1:
Age: 14; Gender: Mare; Breed: Quarter Horse (QH); Clinical Signs: This mare developed abscessed submandibular lymph nodes and was diagnosed with Strangles. Two other horses from the same paddock have draining lymph nodes and one other horse from the same paddock has mild clinical signs.; Confirmation Date: 1/6/2026;

Comments: The facility owner, working with their veterinarian, 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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