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Mosquitoes in Canada

Overall Risk: Low

4 mosquito-borne diseases are present in Canada. Data sourced from WHO, CDC, and ECDC.

Other Diseases Present

Dog heartworm

St. Louis encephalitis

Western equine encephalitis

West Nile virus disease

Precautions

CDC recommends EPA-registered repellents containing DEET, picaridin, IR3535, or oil of lemon eucalyptus

WHO advises long-sleeved clothing and long trousers during dusk and dawn hours

WHO recommends permethrin-treated bed nets where accommodation is open-air or unscreened

WHO emphasises eliminating standing water to prevent Aedes breeding

CDC recommends intact window screens in accommodation

CDC recommends antimalarial chemoprophylaxis for travellers to malaria transmission zones

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More in North America

Explore mosquito risk briefings for other destinations in North America.

United States

Disease presence data is sourced from WHO, CDC, ECDC, and OpenDengue. Not medical advice. Personal decisions on repellents, vaccinations, or medication belong with a qualified travel health professional.