Opportunistic InfectionsEndogenous RetrovirusesAIDS-Related Opportunistic InfectionsRetroviridaeRetroviridae InfectionsHIV InfectionsAcquired Immunodeficiency SyndromePneumonia, PneumocystisRetroviruses, SimianCD4 Lymphocyte CountAntiretroviral Therapy, Highly ActiveHIV-1Immune Reconstitution Inflammatory SyndromeImmunocompromised HostT-Lymphocytopenia, Idiopathic CD4-PositiveLeukemia Virus, MurineTerminal Repeat SequencesBetaretrovirusHIVAnti-HIV AgentsMycobacterium avium-intracellulare InfectionSpumavirusMolecular Sequence DataToxoplasmosis, CerebralMeningitis, CryptococcalMycosesProvirusesCytomegalovirus InfectionsGene Products, gagAnti-Retroviral AgentsLymphoma, AIDS-RelatedSarcoma, KaposiSimian foamy virusCryptococcosisVirus ReplicationBase SequenceMicrosporidiosisRetroelementsPneumocystis jiroveciiRNA, ViralVirus IntegrationHistoplasmosisCell LineNocardia InfectionsRetroviridae ProteinsAIDS Dementia ComplexPneumocystis InfectionsLymphopeniaDNA, ViralMoloney murine leukemia virusRNA-Directed DNA PolymeraseGenes, polGenes, gagGammaretrovirusLung Diseases, ParasiticCandidiasis, OralDeltaretrovirusToxoplasmosisCandidiasisGenes, envPneumocystisMason-Pfizer monkey virusCytomegalovirus RetinitisAmino Acid SequenceLeukoencephalopathy, Progressive MultifocalNamibiaHIV SeropositivityGenetic VectorsImmunologic Deficiency SyndromesImmunosuppressive AgentsCD4-Positive T-LymphocytesAntifungal AgentsHerpes ZosterGenes, Intracisternal A-ParticleViral LoadMedicine, African TraditionalGenes, ViralPneumocystis cariniiTuberculosisAlpharetrovirusBacterial InfectionsPhylogenyInfectionParasitic DiseasesGene Products, envMycobacterium InfectionsAvian leukosis virusOrgan TransplantationSimian immunodeficiency virusHomosexualityGene Products, polThymic Factor, CirculatingReceptors, VirusTrimethoprim-Sulfamethoxazole CombinationMycobacterium avium ComplexMucormycosisAvian Sarcoma VirusesProtozoan InfectionsCryptosporidiosisVirion