Phenotypic comparison of peripheral blood CD4+CD27-CD28- (Fresh) with <i>ex vivo</i> CMV-restimulated CD4+CD27-CD28- (Stim) T cells from CMV-seropositive donors.

<p>The data were derived from 4 to 21 donors per marker. Bars represent medians and interquartile ranges of the markers shown in the title of each graph. P values were calculated by Mann Whitney test for nonparametric distributions. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0180691#pone.0180691.s002" target="_blank">S2 Fig</a> shows the phenotypic characteristics of mock-stimulated PBMC from CMV-seropositive donors.