Boolean analysis of Bcl-2, Ki67 and CD95 co-expression by CFP-10/ESAT-6-specific CD4 T cells indicated that Bcl-2−CD95+Ki67+ CD4 T cells were found almost exclusively in patients TB patients, and rarely in individuals with LTBI (Figure 3B-C; Figure S4). The gene discussed is BCL2; the disease is tuberculosis.