Hepatitis CHepatitis C, ChronicHepacivirusHepatitis C AntibodiesLymphocytesHepatitis BAntiviral AgentsRibavirinInterferon-alphaLiver CirrhosisHepatitis AHepatitis B virusRNA, ViralPolyethylene GlycolsHepatitis B Surface AntigensHepatitis, Viral, HumanSubstance Abuse, IntravenousHepatitis C AntigensLymphocyte ActivationHepatitis B, ChronicAlanine TransaminaseHepatitisGenotypeHepatitis AntibodiesEgyptViral LoadLiver TransplantationHepatitis B AntibodiesCryoglobulinemiaLiverHepatitis A virusHIV InfectionsHepatitis, ChronicCarcinoma, HepatocellularHepatitis B VaccinesSexually Transmitted Diseases, ViralLiver Function TestsDrug Therapy, CombinationRisk FactorsViral Nonstructural ProteinsPrevalenceInterferonsLiver NeoplasmsCoinfectionRecombinant ProteinsRho(D) Immune GlobulinHepatitis B Core AntigensHepatitis A VaccinesLiver FailureHepatitis B e AntigensViral Hepatitis VaccinesHepatitis B AntigensBiopsyHepatitis ETreatment OutcomeHepatitis, AutoimmuneRetrospective StudiesHepatitis, Viral, AnimalHepatitis E virusBlood TransfusionHepatitis A AntibodiesViremiaDisease ProgressionHepatitis VirusesT-LymphocytesCohort StudiesViral Core ProteinsLymphocyte SubsetsHepatitis A Virus, HumanMolecular Sequence DataLiver DiseasesHepatitis DChronic DiseaseAspartate AminotransferasesCase-Control StudiesHepatitis, AnimalVirus ReplicationHepatitis Delta VirusAcute DiseaseTime FactorsPolymerase Chain ReactionRecurrenceLymphocyte CountGB virus CFlaviviridae InfectionsBiological MarkersDNA, ViralBlood DonorsB-LymphocytesProspective StudiesIncidenceSeverity of Illness IndexRepliconSeroepidemiologic StudiesBase SequenceFollow-Up StudiesMurine hepatitis virusRenal DialysisFlaviviridaeCross-Sectional Studies