Strangles
Dufferin County, ON
Alert ID: 4166
March 10, 2025
Confirmed Case(s) - Voluntary Quarantine

OMAFA

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

Horse 1: 
Age: 18; Gender: Mare; Breed: Appaloosa; Clinical Signs: This mare became febrile and was promptly isolated. She developed multiple abscesses on the head and had repeated fevers. Culture and PCR were positive for S. equi. No other horses on the farm are affected.; 

Comments: The facility owner is working with their veterinarian on voluntary animal movement restrictions and biosecurity. 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.;