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Maine CDC warns ticks stay active into fall as tickborne disease reports top 5,000

State health officials urged residents and visitors to guard against tick bites during fall yard work, hunting and other outdoor activities, saying ticks remain active whenever temperatures rise above freezing.

Ticks remain active across Maine even as temperatures fall, and residents and visitors should keep protecting themselves from bites during the autumn months, the Maine Center for Disease Control and Prevention said Monday.

Health care providers have reported more than 5,000 cases of tickborne disease in Maine so far in 2026, according to preliminary counts from the Maine Tracking Network cited by the agency, which is part of the state Department of Health and Human Services. The total includes Lyme disease, anaplasmosis and babesiosis.

Ticks can be active through the fall and on winter days whenever temperatures climb above freezing, the agency said. Fall chores and pastimes such as raking leaves and hunting bring people into wooded and brushy areas and leaf litter, where ticks often live.

"Many people think ticks are only a summer problem, but ticks can remain active throughout the fall," said Maine CDC Director Puthiery Va.

The agency recommended using an EPA-approved repellent such as DEET, picaridin, IR3535 or oil of lemon eucalyptus on skin and treating clothing with permethrin; wearing long sleeves and long pants tucked into socks; showering after being outdoors; and putting clothes in a dryer on high heat for at least 15 minutes before washing. People should check themselves, children and pets for ticks after time outside and before bed, including the scalp, behind the ears and knees, under the arms and around the waist, officials said.

Symptoms of tickborne illness are often flu-like, and Lyme disease can cause an expanding rash that sometimes looks like a bull's-eye, the agency said. People with symptoms should see a health care provider and mention any recent tick exposure.

The University of Maine Cooperative Extension Tick Lab identifies ticks for free and tests them for Maine residents for $20, though the agency said testing is for surveillance only, not diagnosis.

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