1. A, Summary of reported cases of Lyme disease in the United States.
A, Summary of reported cases of Lyme disease in the United States. There is 1 dot within the county of residence for each reported case. Note the widespread diversity of cases correlating with the prevalence of infected Ixodes species in different geographic areas. Courtesy of the Centers for Disease Control. B, The beige-shaded areas indicate the geographic distribution of recorded clinical cases of Lyme borreliosis. The colored ellipses indicate the distribution of the various Borrelia subspecies. Fig 2B is reprinted with permission from Nature Publishing Group.108
P. Hildenbrand et al. AJNR Am J Neuroradiol 2009;30:
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