“…A number of questions remain to be answered in evaluating CMV as a risk factor for AR. While CMV disease is associated with an increased incidence of AR (Sagedal et al, 2002;Toupance et al, 2000), data regarding the role of asymptomatic CMV infection are controversial (Dickenmann et al, 2001;Sagedal et al, 2002;Toupance et al, 2000). The CMV prophylaxis in current use leads not only to a decreased incidence, but also to a delay in the onset of CMV infection and disease (Brennan et al, 1997;Lowance et al, 1999;Paya et al, 2004;Reischig et al, 2005).…”