HTLV-I InfectionsHuman T-lymphotropic virus 1Simian T-lymphotropic virus 1Deltaretrovirus InfectionsHTLV-II InfectionsParaparesis, Tropical SpasticHTLV-I AntibodiesHuman T-lymphotropic virus 2JamaicaGene Products, taxDeltaretrovirusProvirusesGenes, pXLeukemia-Lymphoma, Adult T-CellCarrier StateViral LoadDeltaretrovirus AntibodiesDNA, ViralAntibodies, ViralLeukocytes, MononuclearHTLV-II AntibodiesAcquired Immunodeficiency SyndromeT-LymphocytesJapanPolymerase Chain ReactionDeltaretrovirus AntigensStrongyloidiasisPrimate T-lymphotropic virus 3Cell LineViral Envelope ProteinsNuclear EnvelopeGene Products, envRetroviridae Proteins, OncogenicHTLV-I AntigensMolecular Sequence DataHTLV-II AntigensFrench GuianaVirus ReplicationRNA VirusesCercocebusRNA, MessengerVaccinia virusGene Products, rexReceptors, VirusAmino Acid SequenceHIV Envelope Protein gp120Genes, ViralRetroviridae ProteinsCD4-Positive T-LymphocytesMelanesiaIndians, Central Americanenv Gene Products, Human Immunodeficiency VirusPhylogenyBlood DonorsCells, CulturedLeukemia, T-CellAntigens, ViralHuman T-lymphotropic virus 3Virus CultivationRetroviridae InfectionsHIVGenes, envViral ProteinsRNA, ViralCell Transformation, ViralVirus AssemblyGene Expression Regulation, ViralJurkat CellsVirus SheddingBase SequenceHIV-1Strongyloides stercoralisMonkey DiseasesLymphocyte ActivationVirus DiseasesSimian virus 40Terminal Repeat SequencesHIV AntibodiesRadioimmunoprecipitation AssayCytopathogenic Effect, ViralDNA VirusesSindbis VirusDefective VirusesPlant VirusesIndians, South AmericanMeasles virusViral Regulatory and Accessory ProteinsGene Products, gagRepetitive Sequences, Nucleic AcidHIV Envelope Protein gp41Neutralization TestsPeruInfluenza A Virus, H1N1 SubtypeRabies virusGiant CellsSeroepidemiologic StudiesGenes, polVirionHeLa CellsCell Line, Transformed