The first human retrovirus.

Acquired Immunodeficiency Syndrome/microbiology Animals Bacteriological Techniques DNA, Viral/biosynthesis Deltaretrovirus/analysis,enzymology,genetics Deltaretrovirus Infections/microbiology,transmission Epidemiologic Methods Haplorhini Humans Leukemia, Hairy Cell/microbiology Microscopy, Electron Models, Molecular Nucleic Acid Conformation RNA, Viral/metabolism RNA-Directed DNA Polymerase/metabolism Receptors, Immunologic/metabolism Receptors, Interleukin-2 Repetitive Sequences, Nucleic Acid Retroviridae T-Lymphocytes/microbiology Transcription, Genetic

DNA, Viral RNA, Viral Receptors, Immunologic Receptors, Interleukin-2 RNA-Directed DNA Polymerase