Disease alerts - Strangles (Streptococcus equi) in Ontario, March 19, 2026 - Strangles (Streptococcus equi) in Ontario, March 19, 2026 - Strangles (Streptococcus equi) in Ontario, March 19, 2026

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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;
Other

Topics:

Endemic

Start Date

Mar/19/2026

End Date

Mar/19/2026

Website

Equine Disease Communication Center

Strangles (Streptococcus equi) in Ontario, March 19, 2026

Ontario Ministry of Agriculture, Food and Agribusiness (OMAFA)

Strangles (Streptococcus equi) has been confirmed in Wellington, Ontario. A three year old Quarter Horse filly had a fever for 4 days, then developed purulent nasal discharge and lymph node enlargement under the jaw. She tested positive for Streptococcus equi by PCR. The horse is recovering.

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.