Viral infections are a major cause of mortality following stem cell transplantation. In collaboration with Drs. Michael Boeckh and Josh Hill, we are using kinetic tools to measure the kinetics of multi-virus reactivation in blood in the high-risk weeks immediately following myeloablative therapy. Our goal is to identify whether infection with multiple virus links with mortality and whether novel antiviral therapies might have an impact on outcome. Similar studies are being considered for respiratory viruses as well.