Ticks and Lyme disease.
D000818:Animals; D001096:Arachnid Vectors; D015748:Borrelia burgdorferi Group / Q000276:immunology; D006801:Humans; D018884:Ixodes / Q000382:microbiology*; D008193:Lyme Disease / Q000382:microbiology / Q000473:pathology / Q000635:transmission*; D012698:Serologic Tests; D015047:Zoonoses / Q000382:microbiology