<unk>  reactions from blood<unk>  may occur from the presence of allergy-causing antigens within the donor's blood, or<unk>  of antibodies from a donor who has<unk> s, followed by antigen exposure. An<unk>  is a type of<unk>  reaction that is defined according to the Center for Disease Control (CDC) as:
Allergic transfusion reaction
Hypotensive transfusion reaction
Delayed hemolytic transfusion reaction
Transfusion associated circulatory overload
Acute hemolytic transfusion reaction
Transfusion transmitted infection
Activation syndrome
Transfusion-related immunomodulation