Tick Activity Surges Across Maine Amid Rising Lyme Disease Cases
• Maine is currently experiencing a significant increase in tick activity, with both deer ticks and dog ticks in the adult stage of their life cycles. According to Griffin Dill, manager of the Tick Lab at the University of Maine Cooperative Extension, this simultaneous activity creates the impression of a tick inundation. Deer ticks, known for transmitting Lyme disease and other tick-borne illnesses, are a public health concern, while dog ticks are more of a nuisance, with no confirmed cases of Rocky Mountain spotted fever in Maine. The Maine Center for Disease Control and Prevention reported a record 4,257 Lyme disease cases in 2025, with 946 cases already documented in 2026 as of June
• Deer ticks are more prevalent along the coast, particularly in Midcoast Maine, and their range has expanded due to climate change. Residents are encountering ticks in backyards, hiking trails, and even on porches and playground equipment.
Why It's Important?
The increased tick activity poses health risks, particularly from deer ticks, which can transmit Lyme disease and other illnesses. Symptoms of Lyme disease include fatigue, joint pain, headaches, and fever. If untreated, these conditions can lead to severe complications. Dog ticks, while less dangerous, can still cause discomfort and irritation. The prevalence of ticks in outdoor and even residential areas increases the likelihood of human and pet exposure. With climate change expanding the range of deer ticks, all 16 counties in Maine are now reporting Lyme disease cases, highlighting the growing public health challenge.
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