Absence of proliferation and expansion of selective CD4⁺ T-cell memory subsets by IL-15. (A) Fold change in CD4⁺ and CD8⁺ T_CM, T_TM, and T_EM absolute counts and (B) percent of Ki-67⁺ cells in the same T-cell subsets in the peripheral blood during treatment with IL-15, ART, or ART+IL-15. The horizontal gray line indicates no change versus baseline. #P < .05 vs d−7; Wilcoxon rank-sum test. The color of each “#” symbol refers to the group whose distribution is significantly different from the reference group. Data are expressed as in Figure 1B. In Figure 1C, individual animals are not shown.