Strangles Disease

Positive Case of Strangles Confirmed in Ontario On Feb. 19, 2021, the Equine Disease Communication Center (EDCC) confirmed a positive case of strangles in Ontario. The Alcohol and Gaming Commission of Ontario (AGCO) was informed that a Standardbred racehorse at Shamrock Training Centre that had travelled from Red Shores Racetrack in Prince Edward Island on Feb. 14, 2021, with four other horses has tested positive for strangles. The racehorse is in isolation at another property as of Feb. 16, 2021.

For the full disease advisory, visit EDCC. Additional details on strangles can be found here.

Positive Case of Strangles Confirmed in Prince Edward Island

On Feb. 17, 2021, the Atlantic Provinces Harness Racing Commission (APHRC) was informed of a new confirmed case of strangles in a Standardbred in Prince Edward Island. Testing of other horses in the newly impacted stable is underway and the stable has been quarantined. For the full disease advisory, visit the Equine Disease Communication Center.

Additional details on strangles can be found here.

Strangles is a highly contagious and serious infection of horses and other equids caused by the bacterium Streptococcus equi (S. equi). The disease is characterized by severe inflammation of the mucosa of the head and throat, with extensive swelling and, often, rupture of the lymph nodes that produces large amounts of thick, creamy pus.

Alberta Veterinary Medical Association 

Ontario Ministry of Agriculture, Food and Rural Affairs

Recent Posts

See All

Equine Infectious Anemia (EIA)

Yukon - On May 24, 2021, positive equine infectious anemia (EIA) results were confirmed by the Canadian Food Inspection Agency’s (CFIA) national reference laboratory for a horse located on a premises


Quebec - April 2021 Anaplasma phagocytophilum case in a horse in Quebec, April 2021 Réseau équin du ministère de l’Agriculture des Pêcheries et de l’Alimentation du Québec A case of anaplasmosis was c

Equine Biosecurity

Putting preventive measures in place to keep animals healthy has been a long-standing and successful practice on Canadian farms. Biosecurity planning helps to ensure that practices routinely carried o