In the developed world, most of the reported complications of transfusion have an immunological basis. Although the media and the public are worried about the infectious risks of transfusion ...

These risks include: frequent febrile non–hemolytic transfusion reactions; transmission of viral, bacterial and protozoan infections; and alloimmunization resulting in refractoriness to future ...

[7] Hypotension, tachycardia, nausea and vomiting are more likely to occur in acute reactions ... Occasionally, an HTR may result from transfusion of non-red cell blood components such as fresh ...