Fig. 3

Age and CMV associated differences in the αβ T-cell compartment. (a) Frequencies of αβ T-cells, identified as γδ TCR negative, in young (y) and old (o) CMV seropositive and seronegative individuals. (b) The abundance of CD4+ and (c) of CD8 T-cells. (d) CD4:CD8 ratios. The Mann–Whitney test was used for the statistical comparison. Bonferroni-correction adjusted the significance cutoff to p ≤ 0.0083