Transfusion-associated graft-versus-host disease (TA-GvHD) is a rare complication of blood
transfusion that has a fatal outcome in most patients. It is caused by the transfusion of viable
T cells present in blood products that are not rejected by the transfusion recipient, either
because of recipient immunodeficiency or because of a common HLA haplotype between
the blood donor and recipient. Because effective treatment is not available, risk identification
and prevention are of central importance. Among the potential risk factors that have been …