TB patients also expressed higher proportions of CFP-10/ESAT-6-specific CD4 T cells with a Bcl-2−CD95+Ki67− phenotype, whereas individuals with LTBI had greater proportions of Bcl-2+ cells, with or without CD95 co-expression, in the absence of Ki67 (Figure 3C-E; Figure S4). Here, FAS is linked to tuberculosis.