Strangles Disease

Report of Strangles Case – horse travelled from PEI


On December 4, 2020 the Alcohol and Gaming Commission of Ontario (AGCO) was informed a Standardbred horse that had travelled from PEI with three other horses has tested positive for strangles. The horse is now in isolation at a farm in Princeton, ON. {read more}


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

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