Reported cases of Lyme disease – United States 2022

Data are aggregated by county. Dots are displayed randomly throughout a county based on the number of cases in that county. Cases are reported from the infected person's county of residence (where known), not necessarily the place where they were infected. Maps do not include data if county of residence was not reported. People travel between counties and states, and the place of residence is sometimes different from the place where the patient became infected.