Reported cases of Lyme disease, 2023

CDC data from 2023 indicates that Lyme disease is most prevalent within the Northeast and upper Midwest regions. The condition derives its name from Lyme, Connecticut, the location where researchers first reported the disease in 1975. Historical records from 1995 and 2010 also track reported cases of Lyme disease. Current mapping confirms the geographical concentration of the illness, maintaining the historical trend of prevalence in specific northern United States territories as reported by the CDC.