Flow cytometry analysis of MHC class II protein levels on CMV latently infected adherent cells from GM-P cultures.

GM-Ps were infected with CMV strain Toledo (MOI of 3) or mock infected. Newly adherent cells were harvested and stained with anti–MHC class II (HLA-DR) antibody TU36 at day 10 after infection (A). The MFI of cell surface MHC class II levels is shown (B).