
Quebec issues warning about diseases from ticks, mosquitoes
QUÉBEC – Quebec's Health Department is warning people to stay vigilant about tick and mosquito bites as summer begins.
The department says ticks and mosquitoes can carry Lyme disease, West Nile virus, and California serogroup viruses, among others.
As well, the province says the warming climate is allowing ticks to survive more easily than before.
It says there are several ways to protect against disease, such as using a DEET- or icaridin-based mosquito repellent and wearing light-coloured, lightweight clothing.
To prevent tick bites, people should stick to walking trails and avoid tall grass.
Lyme disease is the most common tick-borne illness in Quebec.
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From Jan. 1 to Oct. 26, 2024, 681 cases of Lyme disease were reported in Quebec, compared to 652 cases for all of 2023. There were 125 cases in 2014, 160 in 2015, and 177 in 2016.
This report by The Canadian Press was first published June 20, 2025.

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Quebec issues warning about diseases from ticks, mosquitoes
See more sharing options Send this page to someone via email Share this item on Twitter Share this item via WhatsApp Share this item on Facebook Quebec's Health Department is warning people to stay vigilant about tick and mosquito bites as summer begins. The department says ticks and mosquitoes can carry Lyme disease, West Nile virus, and California serogroup viruses, among others. As well, the province says the warming climate is allowing ticks to survive more easily than before. Get weekly health news Receive the latest medical news and health information delivered to you every Sunday. Sign up for weekly health newsletter Sign Up By providing your email address, you have read and agree to Global News' Terms and Conditions and Privacy Policy It says there are several ways to protect against disease, such as using a DEET- or icaridin-based mosquito repellent and wearing light-coloured, lightweight clothing. To prevent tick bites, people should stick to walking trails and avoid tall grass. Lyme disease is the most common tick-borne illness in Quebec. From Jan. 1 to Oct. 26, 2024, 681 cases of Lyme disease were reported in Quebec, compared to 652 cases for all of 2023. There were 125 cases in 2014, 160 in 2015, and 177 in 2016.