Association of CMV reactivation with CD4⁺and CD8⁺T-cell recovery in adult CBT recipients. (A) CD4⁺ T-cell recovery according to CMV reactivation by day 60 post-CBT. (B) CD8⁺ T-cell recovery according to CMV reactivation by day 60 post-CBT. Individual patient time points are color coded according to CMV reactivation. Curves are Loess-smoothed averages.