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

District of Algoma, ON

Outbreak Identifier: 7822

Alert ID: 5397

October 28, 2026

Confirmed Case(s) - Voluntary Quarantine

Source: Ontario Ministry of Agriculture, Food, and Agribusiness

Number Confirmed: 1;
Number Suspected: Unknown;
Number Exposed: 6;
Facility Type: Boarding Facility;

Horse 1:
Age: 5; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 10/20/2026; Clinical Signs: Draining submandibular abscess.; Confirmation Date: 10/22/2026; Vaccination Status: Unvaccinated;

Comments: The facility manager, working with their veterinarian, has implemented 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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