601f9fde_Adverse_Transfusion_Reactions__Definition
[Type of Reaction] Alloimmunization to leukocyte antigens Occurs in patients receiving repeated platelet transfusions and women with for > 4 pregnancies [Symptoms] • Signs of febrile non-hemolytic transfusion reactions [Definition] 
Development of antibodies to leukocyte (HLA) antigens
Adverse Transfusion Reactions
Definition