Have received any investigational agent with known anti-CMV activity within 30 days before initiation of study treatment or CMV vaccine at any time. Have received any investigational agent with known anti-CMV activity within 30 days before initiation of study treatment or investigational CMV vaccine at any time. Subjects who have received any anti-CMV therapy and investigational anti-CMV drugs at any time posttransplant. Subjects who have had any anti-CMV vaccine at any time. Any prior investigational CMV vaccine Any prior investigational CMV vaccine Any prior investigational CMV vaccine RECIPIENT: Any prior investigational CMV vaccine Has, is, or is planning (during the study) to participate in any study involving administration of a CMV vaccine or another CMV investigational agent