Tick Bite Cases Surge Across the U.S. Amid Rising Temperatures
Tick Bite Cases Surge Across the U.S. Amid Rising Temperatures
US · Published Jul 14, 2026
Tick bite cases in the United States have surged to record levels this year, with emergency department visits in April reaching their highest since 2017, according to the CDC's tick bite tracker.
Disease ecologist Pilar Fernandez from Washington State University attributes this increase to the geographic expansion of tick habitats, driven by rising global temperatures.

Impact & Risks

The surge in tick activity poses a significant health risk, particularly in the Northeast and Midwest, where most cases are reported. Tick-borne diseases like Lyme disease affect approximately 476,000 people annually in the U.S., while Alpha-gal syndrome, linked to the lone star tick, is also on the rise. Symptoms of tick-borne illnesses often mimic common sicknesses, such as fever, headache, and muscle aches, making early diagnosis challenging. As ticks expand into new regions, individuals unfamiliar with preventive measures may face a higher risk of infection. Pets can also bring ticks indoors, further increasing exposure risks.

Related News