Interactive data visualization based on CDC surveillance data
*These data were reported according to different Lyme disease case definitions. Only major case definition changes are denoted.
This visualization shows reported cases of Lyme disease in the United States from 1996 to 2023. The CDC has changed the case definition over time, which impacts how cases are counted and reported. Major case definition changes occurred in 1996, 2008, and 2022.
The 2022 case definition appears to have significantly increased the number of reported cases, as seen in the dramatic rise for 2022-2023.