5 Tick Borne Diseases Found in Canada

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Lyme disease

The most famous of the tick borne diseases in Canada is an inflammatory condition caused by strains of Borrelia bacteria, carried by blacklegged ticks. It’s the most common tick-related illness, and it often comes with a rash, as well as fever, nausea and muscle and joint pain. Remember: ticks may thrive in deciduous forests but populations are spreading to more urban settings. To find out if Lyme disease-carrying ticks live near you, visit this Health Canada website to track problem areas listed by province.

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Babesiosis

Carried by blacklegged ticks, this illness is caused by the microscopic parasite Babesia microti. The parasite infects red blood cells, causing fevers, chills, headaches and fatigue. More severe cases can lead to jaundice, anemia and shortness of breath. How big is a tick? A youngster is the size of a poppyseed; a male, the equivalent of a sesame seed; a female measures up to a flaxseed. After they’ve fed, they get significantly larger. CanLyme offers some helpful charts to identify ticks.

Here’s expert advice on what to do when you find a tick in your house.

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Human granulocytic anaplasmosis

This infectious disease is spread by blacklegged ticks carrying the bacterium Anaplasma phagocytophilum. It attacks white blood cells and leads to fever, chills, headaches and muscle aches.

Find out 50+ health symptoms you should never ignore.

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Rocky Mountain spotted fever

Transmitted by an infected American dog tick (above) or Rocky Mountain wood tick, this illness, luckily, has been mostly confined to the southern U.S. It typically shows up with a fever, headache, nausea and then a rash.

Here are the red flags your fever is something more serious.

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Powassan

This tick-borne virus that can be transmitted by the blacklegged tick but is extremely rare—only 21 cases have ever been reported in Canada. Some people don’t develop any symptoms; others have a fever, headache, vomiting or even inflammation of the brain and meningitis.

Now that you know which tick-borne diseases can be found in Canada, read the terrifying story of a Canadian woman who developed Lyme disease—without the telltale bullseye rash.