Subpopulation diversity of sort-purified T cells in HIV-uninfected versus -infected subjects. Data are shown for those HIV-uninfected and -infected subjects (regardless of prespecified comparison group) from whom the target number of cells (1.2 million cells or 0.4 million cells) could be collected. Abbreviations for cell subpopulations and the markers used to define them for flow cytometric purification are the same as in Figure 3. All diversity comparisons were nonsignificant, except that the TCR repertoire of the central memory CD4⁺ T-cell subpopulation from HIV-infected subjects was significantly more diverse than that found in HIV-uninfected subjects (2-tailed Mann-Whitney test, P = .007).