Fig. 3From: Mycobacterium tuberculosis thymidylate kinase antigen assays for designating incipient, high-risk latent M.tb infectionTMK host specific IgM levels among the NTB controls and TB exposed house-hold contacts. This figure shows TMKmt host specific IgM levels among the 9 NTB controls (American donors) and 40 TB exposed house-hold contacts. IgM levels were found to be within the same range across both categories. This is consistent with TB epidemiology and immune-pathogenesis wherein exposure occurs early and is followed by M.tb host-specific IgM responses that last only about 1 to 3 months; being replaced by IgG antibodiesBack to article page