Abstract
The safety transfusion has been increased in the most blood banks around the world because the transfusion-transmissible virus has been reduced drastically since emerged Aids.In Brazil, the serological screening to HIV-I/II, HCV, HTLV I/II, HBV, Chagas Disease and Syphilis must be done. In spite of that the risk of the transfusion-transmissible pathogens is the most serious worldwide publ…