Figure 2

Inter-individual comparison of the differentiation status of Vδ2^-and Vδ2⁺cells in individuals stratified according to CMV. A) frequency of early-differentiated CD27⁺CD28⁺ and B) late-differentiated CD27^-CD28^- cells within the Vδ2^- and Vδ2⁺ subsets is shown in CMV-seronegative (left-hand panel) and CMV-seropositive (CMV⁺, right-hand) donors between the age of 21 and 89. P values were calculated using the Wilcoxon matched-pairs signed rank test.