 - Arm I DC vaccination plus ALT: Patients receive CMV-ALT IV over 45-90 minutes course 1 only and 2 x 107 CMV pp65-LAMP mRNA-loaded DC CMV-DC vaccine intradermally and administered in equal portions to each inguinal region. Vaccination repeats every 1-3 weeks for up to 3 doses in the absence of unacceptable toxicity. 