TST and tuberculosis: There was a significant increase in CD4+ T cell count at M6, M18 and M24 of HAART in both the HIV + TB- (P < 0.001 for all) as well as the HIV + TB + patients (p = 0.02, 0.001, 0.001, respectively); and in the HIV + TST + (p = 0.03, 003, 0.04, respectively) as well as in the HIV + TST- (P < 0.001 for all) (Figure 3A & B).