Graft-Verus-Host Disease (GVHD) - Quick Reference Sheet Multisystem disorder that is a common complication of allogeneic hematopoietic cell transplant (HCT). GVHD occurs when immune cells transplanted from a non-identical donor (the graft) recognize the transplant recipient (the host) as foreign, thereby initiating an immune reaction that causes disease in the transplant recipient. Nicholas J Thomas https://twitter.com/nickthomasmed - MD candidate @UCSF #GraftVerusHost #Disease #GVHD #CheatSheet #Transplant #Diagnosis #Overview #Management