Acquired Immunodeficiency SyndromeMurine Acquired Immunodeficiency SyndromeSyndromeHIV-1HIV InfectionsSimian immunodeficiency virusHIVAIDS-Related Opportunistic InfectionsSimian Acquired Immunodeficiency SyndromeAIDS-Related ComplexImmunologic Deficiency SyndromesFeline Acquired Immunodeficiency SyndromeImmunodeficiency Virus, FelineHomosexualitySevere Combined ImmunodeficiencyMolecular Sequence DataHIV SeropositivityZidovudineAnti-HIV AgentsPneumonia, PneumocystisCD4 Lymphocyte CountVirus ReplicationCommon Variable ImmunodeficiencyHIV AntibodiesLymphoma, AIDS-Relatedtat Gene Products, Human Immunodeficiency VirusHIV AntigensHIV-2Antiretroviral Therapy, Highly ActiveCell LineBase SequenceMacaca mulattaDeltaretrovirusHIV Envelope Protein gp120RNA, ViralGene Products, gagSarcoma, KaposiAmino Acid SequenceLeukemia Virus, MurineCD4-Positive T-LymphocytesHIV Core Protein p24Viral LoadDNA, ViralOpportunistic InfectionsCytomegalovirus RetinitisAntigens, CD4T-LymphocytesDown SyndromeRetroviridae InfectionsMetabolic Syndrome XMutationReverse Transcriptase InhibitorsToxoplasmosis, CerebralPolymerase Chain ReactionCells, CulturedHIV Reverse TranscriptaseGene Products, envRetroviridae ProteinsTime FactorsAntiviral Agentsnef Gene Products, Human Immunodeficiency VirusLymphatic DiseasesAntibodies, ViralHIV SeronegativityAIDS SerodiagnosisDidanosineDisease Models, AnimalRNA-Directed DNA Polymerasegag Gene Products, Human Immunodeficiency VirusAIDS Dementia ComplexSubstance Abuse, IntravenousReceptors, CCR5HIV SeroprevalenceFatal OutcomeMice, Inbred C57BLAIDS VaccinesHIV Protease InhibitorsHIV Long Terminal RepeatProvirusesPentamidineUnited Statesrev Gene Products, Human Immunodeficiency VirusRisk FactorsGene Products, tatImmunocompromised HostHemophilia AZalcitabineNephrotic SyndromeLymphocyte ActivationLeukocytes, MononuclearLeukocyte CountNeutralization TestsMycobacterium avium-intracellulare InfectionGenes, envPhenotypeHIV Envelope Protein gp41LymphocytesHistoplasmosisAntibodies, MonoclonalSjogren's Syndrome