Fig. 9

Changes from baseline of CD4⁺ T-cell number in vaccinees and placebos non compliant to therapy. Baseline values (left panel) and changes from baseline after immunization (right panel) of CD4⁺ T-cell counts in vaccinees (n = 18) and placebos (n = 5). Data are presented as box plots. Wilcoxon signed rank sum test for paired data and Wilcoxon–Mann–Whitney test were used for the analyses. p values assess the changes from baseline within and between treatment groups