Multivirus-specific T Cells(Peking University People's Hospital)

To evaluate the safety and tolerability of partial HLA-matched VSTs against both CMV and EBV viruses in recipients of allogeneic hematopoietic stem cells with refractory viral infections (CMV and/or EBV).
Preliminary evaluation of the efficacy of partial HLA-matched VSTs against both CMV and EBV viruses in recipients of allogeneic hematopoietic stem cells with refractory viral infections (CMV and/or EBV); To monitor the duration and expansion of multi-virus VSTs cells after infusion.