4% of the HHV-6-infected patients after allogeneic hematopoietic stem cell transplantation were chromosomally integrated.
HHV-6 likely co-reactivates with CMV and BK virus after allogeneic hematopoietic stem cell transplantation.
HHV-6 infection is likely associated with delayed CD8+ T-cell recovery independently of graft-versus-host disease.
HHV-6 infection reduces the overall probability of survival after allogeneic hematopoietic stem cell transplantation.