Human T-lymphotropic virus 2Deltaretrovirus InfectionsHTLV-I InfectionsDeltaretrovirusDeltaretrovirus AntibodiesHuman T-lymphotropic virus 1Human T-lymphotropic virus 3Simian T-lymphotropic virus 1Genes, pXPrimate T-lymphotropic virus 3Blood DonorsGene Products, taxRetroviridae InfectionsRetroviridaeGene Products, envCameroonCercocebusApe DiseasesCollagen DiseasesLeukemiaRetroviridae Proteins, OncogenicCell Transformation, ViralSeroepidemiologic StudiesRadioimmunoprecipitation AssayParaparesis, Tropical SpasticMycosis FungoidesT-LymphocytesRetroviridae ProteinsLymphomaMonkey DiseasesCell LinePolymerase Chain ReactionAntibodies, ViralProvirusesDNA, ViralEnzootic Bovine LeukosisReceptors, VirusGlucose Transporter Type 1PrevalenceGenes, ViralBlood Transfusionenv Gene Products, Human Immunodeficiency VirusViral Envelope ProteinsLeukemia, T-CellGenes, envMolecular Sequence DataGene Products, gagCoinfectionBrazilPeruAntigens, ViralLeukemia-Lymphoma, Adult T-CellBase SequenceTerminal Repeat SequencesBlotting, WesternSerologic TestsIranImmunoenzyme TechniquesPhylogenyViral ProteinsRepetitive Sequences, Nucleic AcidAntibody SpecificitySubstance Abuse, IntravenousAmino Acid SequenceAntigen-Antibody ReactionsLeukemia, LymphoidPregnancy Complications, InfectiousAcquired Immunodeficiency SyndromeTissue DonorsBinding Sites, AntibodyAntigens, SurfaceRNA, ViralGene Expression Regulation, ViralViral LoadHIV InfectionsSpainEthnic GroupsNucleic Acid HybridizationInfectious Disease Transmission, VerticalCross ReactionsHIV-1Antibodies, MonoclonalCloning, MolecularVirus ReplicationB-LymphocytesViral Core ProteinsLymphocyte ActivationHeLa CellsLymphocytesSensitivity and SpecificityEnzyme-Linked Immunosorbent AssayRisk FactorsPregnancyRNA, MessengerProtein BindingCross-Sectional StudiesCohort StudiesUnited StatesCells, CulturedGene Expression Regulation