Lyme disease is the leading vector-borne disease — meaning diseases that are transmitted to humans from another organism like a tick or mosquito — in North America and Europe. New human cases are estimated at over 400,000 in the United States each year. Canada has experienced a drastic increase in human cases, from 266 cases in 2011 to 3,147 in 2021, as the habitat of its vector, a tick, expands north. The initial symptoms of human Lyme disease can be vague, such as fever, headache, fatigue and often rash. It is a potentially serious condition that can affect multiple systems in the...…Lyme disease is the leading vector-borne disease — meaning diseases that are transmitted to humans from another organism like a tick or mosquito — in North America and Europe. New human cases are estimated at over 400,000 in the United States each year. Canada has experienced a drastic increase in human cases, from 266 cases in 2011 to 3,147 in 2021, as the habitat of its vector, a tick, expands north. The initial symptoms of human Lyme disease can be vague, such as fever, headache, fatigue and often rash. It is a potentially serious condition that can affect multiple systems in the...WW…