HTLV-II InfectionsHuman T-lymphotropic virus 2Deltaretrovirus InfectionsDeltaretrovirus AntibodiesHTLV-I InfectionsHTLV-II AntibodiesHTLV-I AntibodiesHuman T-lymphotropic virus 1DeltaretrovirusHuman 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 ProteinsLymphomaMixed Connective Tissue DiseaseRheumatic DiseasesConnective Tissue DiseasesAntibodies, AntinuclearPolymyositisGermany, WestRheumatology