Acquired Immunodeficiency SyndromeMurine Acquired Immunodeficiency SyndromeSyndromeSimian immunodeficiency virusHIV-1HIV InfectionsSimian Acquired Immunodeficiency SyndromeHIVAIDS-Related Opportunistic InfectionsAIDS-Related ComplexImmunologic Deficiency SyndromesFeline Acquired Immunodeficiency SyndromeImmunodeficiency Virus, FelineColobusHomosexualitySevere Combined ImmunodeficiencyHIV-2Molecular Sequence DataHIV SeropositivityVirus ReplicationCercopithecusZidovudineAnti-HIV AgentsCommon Variable ImmunodeficiencyCD4 Lymphocyte CountPneumonia, PneumocystisHIV AntibodiesLymphoma, AIDS-RelatedMacaca mulattaInfluenza A Virus, H1N2 Subtypetat Gene Products, Human Immunodeficiency VirusHIV AntigensAntiretroviral Therapy, Highly ActiveDeltaretrovirusHIV Envelope Protein gp120Sarcoma, KaposiHIV Core Protein p24Gene Products, gagBase SequenceRNA, ViralAmino Acid SequenceViral LoadCytomegalovirus RetinitisOpportunistic InfectionsDown SyndromeAntigens, CD4Metabolic Syndrome XCD4-Positive T-LymphocytesDNA, ViralReverse Transcriptase InhibitorsCell LineRetroviridae InfectionsT-LymphocytesToxoplasmosis, CerebralHIV Reverse TranscriptaseLentiviruses, PrimatePhylogenyMutationCercocebus atysGene Products, envnef Gene Products, Human Immunodeficiency VirusRetroviridae ProteinsLymphatic DiseasesHIV SeronegativityAIDS SerodiagnosisDidanosineAntiviral Agentsgag Gene Products, Human Immunodeficiency VirusViral Regulatory and Accessory ProteinsPolymerase Chain ReactionSubstance Abuse, IntravenousAIDS Dementia ComplexHIV SeroprevalenceReceptors, CCR5Fatal OutcomeHIV Protease InhibitorsRNA-Directed DNA PolymeraseAntibodies, ViralAIDS VaccinesHIV Long Terminal RepeatPentamidinerev Gene Products, Human Immunodeficiency VirusUnited StatesGene Products, tatRisk FactorsHemophilia APan troglodytesImmunocompromised HostProvirusesZalcitabineNephrotic SyndromeMycobacterium avium-intracellulare InfectionTime FactorsHIV Envelope Protein gp41Contraceptive Devices, MaleGenes, envLeukocyte CountLeukocytes, MononuclearSjogren's SyndromeCells, Cultured