Analysis of the Antibody-Dependent Cellular Phagocytosis (ADCP)-Assay with plasma obtained from D−/R+ (A,D), D+/R+ (B,E) and D+/R− (C,F) lung transplant recipients (LTRs) after lung transplantation (LTX). D−/ R+ and D+/R+ LTRs were tested at 0, 3, 6, 9 and 12 months post-LTX. D+/R− LTRs were tested at 0, 3, 6, 9, 12, 15, 18, 21 and 24 months after LTX. Data are shown as mean values (±SD). Mean value of the HCMV-seropositive control cohort (N = 20) is indicated as black triangle (±SD) (A–C). The normalized mean fluorescence intensity (MFI) at each time point was compared with that of the seropositive control patients by ANOVA and Dunn’s post-test (A–C). MFI at each time point of viremic (>1000 copies/mL) (pink) LTRs was compared with that of non/low-viremic (<1000 copies/mL) (blue) LTRs by Mann-Whitney test (D−F); p < 0.05 was considered significant. * p < 0.05; ** p < 0.01; *** p < 0.001; **** p < 0.0001. MFI: mean fluorescence intensity.