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Lack of correlation between antibody responses to Borrelia burgdorferi (Bb) lysate, outer surface protein A (OspA), or Borrelia iron and copper-binding protein A (BicA) and the genotype of the infecting Bb strain in American Lyme arthritis patients. The circles represent individual serum samples and the bars represent the medians. Abbreviation: IgG, immunoglobulin G.
