HTLV-I InfectionsDeltaretrovirus AntibodiesJamaicaHuman T-lymphotropic virus 1Human T-lymphotropic virus 2Deltaretrovirus InfectionsDeltaretrovirusHuman 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 Diseases