Acquired Immunodeficiency SyndromeSyndromeMurine Acquired Immunodeficiency SyndromeHIV-1HIV InfectionsSimian immunodeficiency virusHIVAIDS-Related Opportunistic InfectionsSimian Acquired Immunodeficiency SyndromeAIDS-Related ComplexImmunologic Deficiency SyndromesFeline Acquired Immunodeficiency SyndromeImmunodeficiency Virus, FelineHomosexualitySevere Combined ImmunodeficiencyHIV SeropositivityAnti-HIV AgentsZidovudineCD4 Lymphocyte CountCommon Variable ImmunodeficiencyPneumonia, PneumocystisMolecular Sequence DataHIV AntibodiesVirus ReplicationLymphoma, AIDS-Relatedtat Gene Products, Human Immunodeficiency VirusAntiretroviral Therapy, Highly ActiveHIV AntigensHIV-2DeltaretrovirusHIV Envelope Protein gp120Macaca mulattaSarcoma, KaposiMetabolic Syndrome XRNA, ViralHIV Core Protein p24Gene Products, gagViral LoadOpportunistic InfectionsCytomegalovirus RetinitisDown SyndromeAntigens, CD4CD4-Positive T-LymphocytesDNA, ViralBase SequenceReverse Transcriptase InhibitorsAmino Acid SequenceCell LineT-LymphocytesRetroviridae InfectionsToxoplasmosis, CerebralHIV Reverse TranscriptaseUnited StatesMutationRisk FactorsGene Products, envnef Gene Products, Human Immunodeficiency VirusRetroviridae ProteinsLymphatic DiseasesHIV SeronegativityPolymerase Chain ReactionAIDS SerodiagnosisDidanosineAntiviral Agentsgag Gene Products, Human Immunodeficiency VirusSubstance Abuse, IntravenousAIDS Dementia ComplexHIV SeroprevalenceTime FactorsAntibodies, ViralTerminology as TopicFatal OutcomeReceptors, CCR5AIDS VaccinesHIV Protease InhibitorsRNA-Directed DNA PolymeraseHIV Long Terminal RepeatPentamidinerev Gene Products, Human Immunodeficiency VirusGene Products, tatImmunocompromised HostHemophilia APrevalenceProvirusesZalcitabineNephrotic SyndromeMycobacterium avium-intracellulare InfectionCohort StudiesHIV Envelope Protein gp41Leukocyte CountDisease ProgressionCells, CulturedLeukocytes, MononuclearContraceptive Devices, MaleGenes, envIncidenceSjogren's SyndromeNeutralization TestsHistoplasmosisHuman Immunodeficiency Virus Proteins