Lyme disease us map. 1 dot placed randomly within county of residence for each confirmed case. Reported cases of lyme disease united states 2017. According to the maps the northeast is most definitely a hotspot for ticks carrying borrelia burgdorferi the bacteria that causes lyme disease. Reported cases of lyme disease united states 2017.
Total us reported cases was 42743 cdc has reported that only 10 of cases are actually reported that translates into 427430 actual new lyme cases in the us in 2017. Click for larger image cdc pdf pdf 1 page each dot represents one case of lyme disease and is placed randomly in the patients county of residence. In 2016 massachusetts transitioned to a surveillance method that relies primarily on laboratory reports. The cdc reported numbers for lyme disease are said to represent about 10 of actual cases that occur each year.