Reported County-Level Distribution of Lyme Disease Spirochetes, B. burgdorferi sensu stricto and B. mayonii, in Host-Seeking I. scapularis and I. pacificus Ticks in the Contiguous United States

Data compiled from the literature, publicly available tickborne pathogen surveillance databases, and internal CDC pathogen testing databases to map the county-level distribution of Lyme disease spirochetes reported in host-seeking Ixodes pacificus and Ixodes scapularis across the contiguous United States.