Transfusion‐induced red blood cell alloimmunisation is unhampered in elderly patients.

Considering this finding, preventing transfusion-induced RBC alloimmunisation by antigen matching should be similarly pursued for immunocompetent young and elderly patients. Transfusion-induced red blood cell alloimmunisation is unhampered in elderly patients With advancing age, adaptive immune responses undergo significant deteriorating changes resulting in a gradual decline of protective responses to infections and long-term immune memory vaccination responses.1-4 Considering the pathophysiology of red blood cell (RBC) alloimmunisation shares several aspects with vaccination responses, primary transfusion-induced RBC alloimmunisation may similarly deteriorate with advancing age. [Extracted from the article]