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Reported distribution of Lyme disease spirochetes B. burgdorferi and B. mayonii

Reported distribution of Lyme disease spirochetes B. burgdorferi and B. mayonii
Reported distribution of Lyme disease spirochetes B. burgdorferi s.s. and B. mayonii in host-seeking I. scapularis (eastern United States) or I. pacificus (western United States), relative to the previously reported distribution of these vector species. Ticks were considered present in a county if at least one tick was recorded[1,2]. Counties where ticks have been reported without records of infection may be reported as such either if ticks were not tested or if the pathogen was not detected in tested samples.
References:
  1. Eisen RJ, Eisen L, Beard CB. County-scale distribution of Ixodes scapularis and Ixodes pacificus (Acari: Ixodidae) in the continental United States. J Med Entomol 2016; 53:349.
  2. Babesiosis. Centers for Disease Control and Prevention (Accessed on December 10, 2021).

Reproduced from: Fleshman AC, Foster E, Maes SE, et al. Reported county-level distribution of seven human pathogens detected in host-seeking Ixodes scapularis and Ixodes pacificus (Acari: Ixodidae) in the contiguous United States. J Med Entomol 2022; 59:1328.

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