The lone star tick is making its way from the U.S. into Canada, and its bite has a strange side effect
Researchers are not sure of the location of the tick bites that led to the two cases. Bouffard says experts believe the cases affecting Canadians are the result of bites that happened during travel to areas in the United States where the lone star tick is more established.Article contentAGS comes from alpha-gal molecules in a tick’s saliva, which enters the blood stream of its host. This causes an immune response to the substance.
Ogden says the lone star tick is very aggressive and will “happily feed on people,” but that developing the allergy is more likely in places where the tick is abundant.Article content Les Waters, in Eastern Ontario, was diagnosed with AGS and spoke with CBC in 2017. He said he had a reaction after eating a hamburger. “Your throat swells up, you can’t breathe, your blood pressure drops and you black out,” he said then.Article content
are used by those with red meat intolerances and allergies to track suspected cases, though most have yet to be confirmed as AGS.Data from etick.ca shows the number of lone star ticks reported in Canada is roughly 10 each year. Tracking is important because “it’s the first step in knowing which ticks that can pose a risk to humans are in what areas,” said Bouffard.
To reduce the chances of being bitten by a tick, Bouffard and Ogden both recommend using bug spray with DEET, wearing light-coloured clothes that make ticks easier to spot, and tucking long pants into socks to stop ticks climbing up the leg.
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