Which of the following blood group antigens is associated with an increased risk of transfusion-related graft-versus-host disease?

A HLA antigens ✓
B Kidd antigens
C Duffy antigens
D Lewis antigens

Explanation

HLA antigens are associated with an increased risk of transfusion-related graft-versus-host disease, as they can trigger an immune response in the recipient.

Source

ASH Education Program Book
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: high