Ticks are tiny, but the diseases they carry can cause large, life-altering health problems.
Adult ticks are only about the size of an apple seed, and nymphs can be as small as a poppy seed, but both bite humans and animals to feed, potentially infecting them with Lyme disease.
Lyme disease is the most common tickborne illness in Ohio, and the number of Lyme disease cases in the state have significantly increased during each of the past three years. In 2022, 554 cases were reported, that number grew to 1,301 in 2023 and 1,788 in 2024, according to data from the Ohio Department of Health Infectious Disease Dashboard(opens in a new window). As of June 2025, there are already 660 cases reported.
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