Blood DonorsTissue DonorsTissue and Organ ProcurementLiving DonorsBrain DeathPresumed ConsentDonor SelectionDirected Tissue DonationThird-Party ConsentTissue and Organ HarvestingKidney TransplantationLiver TransplantationAltruismTissue BanksOrgan TransplantationCadaverInformed ConsentHistocompatibility TestingFamilyWaiting ListsBlood BanksPatient SelectionSeroepidemiologic StudiesRetrospective StudiesBlood TransfusionBlood SafetyHepatitis CHepatitis C AntibodiesHepatitis BHepatitis B Surface AntigensEnzyme-Linked Immunosorbent AssayHepatitis, Viral, HumanHTLV-II InfectionsTorque teno virusDNA Virus InfectionsHepatitis AntibodiesHepatitis B AntibodiesPolymerase Chain ReactionPrevalenceHepatitis B Core AntigensTransplantation, HomologousGraft SurvivalHepacivirusFlaviviridaeAntibodies, ViralHTLV-I InfectionsBrazilBlood-Borne PathogensHTLV-I AntibodiesHTLV-II AntibodiesKidd Blood-Group SystemHepatitis B virusImmunoglobulin GFlaviviridae InfectionsRed CrossGenotypeHuman T-lymphotropic virus 2Immunoglobulin MDNA, ViralSyphilisSensitivity and SpecificityHepatitis B AntigensMolecular Sequence DataRadioimmunoprecipitation AssayBlood Grouping and CrossmatchingBone Marrow TransplantationIranTime FactorsABO Blood-Group SystemHemagglutination TestsGraft vs Host DiseaseAntibodies, BacterialRNA, ViralGraft RejectionImmunoenzyme TechniquesHIV InfectionsHLA AntigensRisk FactorsInsemination, Artificial, HeterologousRh-Hr Blood-Group SystemSerologic TestsChagas DiseaseHIV SeropositivityAntibodies, ProtozoanItalyBase SequenceAlanine TransaminaseHepatitis EBarberingHistocompatibilityTrypanosoma cruziCase-Control StudiesHepatitis E virusChinaHIV SeroprevalenceAlbaniaBloodBlood Group AntigensWest Nile FeverBlood Preservation