Disease alerts - Strangles (Streptococcus equi) in Ontario, August 25, 2025 - Strangles (Streptococcus equi) in Ontario, August 25, 2025 - Strangles (Streptococcus equi) in Ontario, August 25, 2025

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Regulatory Category- Federal:

Not regulated

Regulatory Category- Province or Territory:

Immediately Notifiable

Animal Type:

Equine

Susceptible Animal Types:

Equine

Animal Class:

Terrestrial

Disease Agent:

Strangles (Streptococcus equi)

Disease Agent Type:

Bacteria

Organization:

Ontario Ministry of Agriculture, Food, and Rural Affairs (OMAFRA)

Region:

Ontario

Event Size:

1 individual

Problem(s):

Respiratory signs;
Skin/mucous membrane lesions

Topics:

Endemic

Start Date

Aug/25/2025

End Date

Aug/25/2025

Website

Equine Disease Communication Center

Strangles (Streptococcus equi) in Ontario, August 25, 2025

Ontario Ministry of Agriculture, Food and Agribusiness (OMAFA)

Strangles (Streptococcus equi) has been confirmed in the Regional Municipality of Waterloo, Ontario. The horse developed signs of Strangles (lymph node abscessation, nasal discharge) and tested positive by PCR. The horse is located on a private farm and may have been exposed through contact with other horses at local community gatherings. The horse is recovering. The farm 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.