Uncontrolled cytomegalovirus replication in immunocompromised solid-organ transplant recipients is a clinically relevant issue and an indication of impaired CMV-specific cell-mediated immunity . Primary aim of this study was to assess the suitability of the immune monitoring tool T-TrackA CMV to determine CMV-reactive CMI in a cohort of hemodialysis patients representative of patients eligible for renal transplantation.