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. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: Exp Gerontol. 2018 Jul 3;111:35–44. doi: 10.1016/j.exger.2018.06.029

Figure 1. T cell cytokine responses to M.tb antigens are not altered by age in those with LTBI or active TB.

Figure 1

Number of IFN-γ+ T cells, measured in spot forming units (SFUs), responding to ESAT-6 (A) and CFP-10 (B) from M.tb. IFN-γ (C) and IL-10 (D) from culture supernatants of PBMCs stimulated with M.tb culture filtrate protein. Boxplots are medians with interquartile ranges. Total subjects for each panel are 157 (A), 157 (B), 100 (C) and 164 (D). ** p<0.01 by Mann-Whitney U test.