Blood DonorsExchange Transfusion, Whole BloodBlood TransfusionABO Blood-Group SystemTissue DonorsBloodLiving DonorsTransplantation, HomologousBlood BanksSeroepidemiologic StudiesBlood SafetyDonor SelectionHepatitis CHepatitis C AntibodiesHepatitis BHepatitis B Surface AntigensEnzyme-Linked Immunosorbent AssayHepatitis, Viral, HumanHTLV-II InfectionsTorque teno virusDNA Virus InfectionsHepatitis AntibodiesTissue and Organ ProcurementPolymerase Chain ReactionPrevalenceHepatitis B AntibodiesGraft SurvivalHepatitis B Core AntigensBrazilAntibodies, ViralKidney TransplantationHepacivirusFlaviviridaeHTLV-I InfectionsLiver TransplantationBlood-Borne PathogensImmunoglobulin GHTLV-I AntibodiesHTLV-II AntibodiesGenotypeHepatitis B virusKidd Blood-Group SystemAnesthetics, LocalHistocompatibility TestingRed CrossFlaviviridae InfectionsTime FactorsImmunoglobulin MHuman T-lymphotropic virus 2Molecular Sequence DataDNA, ViralSensitivity and SpecificitySyphilisHepatitis B AntigensTissue and Organ HarvestingRetrospective StudiesAnesthesia, LocalRadioimmunoprecipitation AssayBlood Grouping and CrossmatchingBone Marrow TransplantationIranAntibodies, BacterialBrain Death