Canadians need to be more vigilant about the rapid growth in Lyme disease cases across the country, as climate change fuels an explosion of tick populations and new hot spots for infection continue to emerge from coast to coast — even in places you may not expect. 

There have been 17,080 reported cases of Lyme disease across Canada between 2009 and 2022, but while those numbers are likely an underestimate, they have grown dramatically in recent years according to data from the Public Health Agency of Canada (PHAC).