A quantitative real-time PCR assay was developed to measure human cytomegal
ovirus (HCMV) DNA load in peripheral blood leukocytes (PBLs). The HCMV DNA
load in PBLs was normalized by means of the quantification of a cellular ge
ne (albumin). The results of the real-time PCR assay correlated with those
of the HCMV pp65-antigenemia assay (P < 0.0001).