No relationship between differentiation status and MM levels in HIV- and CMV-specific CD8⁺ T cells from HIV⁺ patients. (A) Representative flow cytometry showing MM and memory populations in HIV- and CMV-specific CD8⁺ T cells from an HIV⁺ patient. Memory populations were identified by CD45RA and CD62L staining. Histograms depict the MM levels in CD45RA⁻CD62L⁻ and CD45RA⁺CD62L⁻ memory subsets of HIV- and CMV-specific CD8⁺ T cells. (B) Pooled data showing the percentage of MM^High cells in CD45RA⁻CD62L⁻ and CD45RA⁺CD62L⁻ memory HIV-specific (n = 7) and CMV-specific (n = 5) CD8⁺ T cell populations. Horizontal bars depict means.