Lyme disease is the most prevalent insect-borne disease in the U.S., with over 62,000 cases reported in 2022, though actual figures may be much higher due to underreporting.
The increase in Lyme disease cases since 1991 is attributed to better surveillance and the warming climate, which has expanded the habitats suitable for deer ticks.
In 2022, Vermont experienced one of the highest incidences of Lyme disease, with nearly 200 cases per 100,000 people, a dramatic rise from just one case in 1996.
While Lyme disease is predominantly found in the Northeast and Midwest, California has seen a steady decrease in cases, with only 77 reported in 2022.
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