CD40LG and tuberculosis: In South Africa, we then measured and analyzed the titres of IgG, IgA and/or IgM antibodies against lipoarabinomannan (LAM) and 7 mycobacterial protein antigens (ESAT-6, Tpx, PstS1, AlaDH, MPT64, 16kDa and 19kDa) and 2 antigen combinations (TUB, TB-LTBI) in plasma samples obtained from all 63 study participants (Table 1).