Disease Alerts

Number Confirmed: 1; 
Number Exposed: 4; 
Comments: Confirmed 10/22;

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.;;

Number Confirmed: 1; 
Number Exposed: 9; 
Facility Type: Private Facility; 

Horse 1: 
Age: Suckling Foal; Gender: Colt; Onset of Clinical Signs: 10/20/2026; Clinical Signs: Enlarged painful lymph nodes. The colt attended a fair 10 days prior to showing clinical signs . The colt may have come in contact with S. equi there or at the home facility afterwards. The colt tested positive by PCR on nasal swab.; Confirmation Date: 10/22/2026; Horse Status: Recovering; Vaccination Status: Unvaccinated;

Comments: The facility owner, 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.;

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

Horse 1: 
Age: 7; Gender: Mare; Breed: Pony; Onset of Clinical Signs: 10/22/2026; Clinical Signs: This mare developed dysphagia (difficulty swallowing), had a fever and swollen lymph nodes of the head. A nasal swab was positive for S. equi by PCR.; Confirmation Date: 10/24/2026; Horse Status: Recovering; Vaccination Status: Unvaccinated;

Comments: The facility owner, 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.;;

Number Confirmed: 1; 
Number Exposed: 7; 
Comments: Diagnosis confirmed 9/17; Quarantine released 10/19;

Number Confirmed: 1; 
Number Exposed: 4; 
Comments: Confirmed 10/26;

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

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

Number Suspected: 2;

Number Suspected: 1;