Update: Lyme disease--United States.
D001096:Arachnid Vectors; D001170:Arthritis, Infectious / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology; D001899:Borrelia Infections / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D012876:Skin Diseases, Parasitic / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology; D013577:Syndrome; D013986:Tick Toxicoses / Q000175:diagnosis* / Q000453:epidemiology; D014481:United States