CD40LG and tuberculosis: Regarding active B cells, the frequency of IgG+ B cells was increased in DS-TB and DR-TB compared with UC (p < 0.0035 and p < 0.0375, respectively) (Figure 2G), and IgM+ B cells were significantly higher in all TB groups than UC (LTB, p < 0.0004; DS-TB, p < 0.0378; DR-TB, p < 0.0025) (Figure 2H).