Ares Pest Control

Tickborne illnesses are rising sharply across Maine and much of the United States, with state health officials reporting record numbers of Lyme disease, anaplasmosis and babesiosis cases as residents face increasing exposure close to home.

The Maine CDC reported 4,257 cases of Lyme disease in 2025, up from 3,218 cases in 2024.

The increase represents a jump of more than 1,000 reported cases, or approximately 32 percent, in a single year.

Other tickborne illnesses also reached record levels in Maine last year. Reported cases of anaplasmosis rose from 1,284 in 2024 to 1,604 in 2025, an increase of nearly 25 percent. Babesiosis cases increased from 309 to 352, a rise of nearly 14 percent.

The numbers continue a troubling trend in Maine. Reported Lyme disease cases increased from 2,943 in 2023 to 3,218 in 2024 before climbing to 4,257 in 2025. Over that two-year period, Maine saw an approximately 45 percent increase in reported Lyme disease cases.

The threat has continued into 2026. As of May 19, the Maine CDC had already recorded 832 combined reports of Lyme disease, anaplasmosis and babesiosis for the year.

Maine’s expanding tick population is not only a threat to people. Dogs and cats that spend time outdoors may be exposed to ticks and can carry them back into homes, extending the risk to their owners and other family members.

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