Some people may not develop any symptoms of illness.It is a potentially serious bacterial infection caused by Borrelia burgdorferi, and can infect humans and animals. Lyme disease is the most common of all the tick diseases. This helps the state monitor where ticks are active.Ĭheck this map to see where blacklegged ticks have been found in the state. If you want to find out for sure what type of tick you've found, you can fill out a form and send it and the tick to the health department for proper identification. Even when biting, a blacklegged tick must stay attached for at least 24 to 48 hours to transmit Lyme disease (12 to 24 hours to transmit human anaplasmosis). They can't do so by just crawling on a person. Risk of bites from these ticks in Minnesota is highest during the spring, early summer, and fall months. Tickborne diseases have been increasing each year in the state.Ī blacklegged tick can only transmit disease to humans through a bite. Greatest risk is found within hardwood or mixed hardwood forests, which provide suitable habitat for blacklegged ticks. High risk areas for tick exposure in Minnesota include the north central, east-central and southeastern regions of the state, also extending into some northwestern counties. See the Minnesota Department of Health page on tickborne diseases. The blacklegged tick carries Lyme disease and several other diseases. The American dog tick in Minnesota can carry Rocky Mountain spotted fever, though this is rare. For more information on Rocky Mountain spotted fever, see information at the Centers for Disease Control and Prevention (CDC). Females die after laying eggs in late spring, completing the life cycle.įemale (right) and male blacklegged ticks.They feed on white-tailed deer, dogs, horses, raccoons or humans.
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