The effect of patient-donor CMV status on immune reconstitution of Vδ2neg and Vδ2pos γδ T cells after SCT. The effect of the patient-donor CMV status on absolute counts of Vδ2neg (top row) and Vδ2pos γδ T-cell subsets (bottom row) was analyzed in patients during 3, 6, 9, and 12 months after transplantation. Patients were divided into 2 groups: 14 CMV^+/+ and 20 CMV^−/−. The horizontal bars represent the median values for each time point. The dashed line represents the median normal range generated from CMV⁺ healthy donors; and the dotted line, the median normal range generated from CMV⁻ healthy donors. Available patient samples were analyzed using nonparametric Mann-Whitney test, and P values were determined. P values less than .05 were considered significant.