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Mycobacterium tuberculosis (Mtb) antigens with the highest reactivity. Analysis of IgG (A and C) and IgA (B and D) antibody responses to Mtb antigens at baseline (A and B) and 3 months (C and D). The antibodies showing the highest responses are shown. Red indicates the group with the highest response. Abbreviations: AUC, area under the curve; C, converters; Ig, immunoglobulin; NA, not applicable; NC, nonconverters.
