Viral LoadAntiretroviral Therapy, Highly ActiveHIV InfectionsCD4 Lymphocyte CountAnti-HIV AgentsHIV-1RNA, ViralViremiaAcquired Immunodeficiency SyndromeHIVCD4-Positive T-LymphocytesDNA, ViralInfectious Disease Transmission, VerticalHIV SeropositivityCohort StudiesDrug Resistance, ViralAnti-Retroviral AgentsAIDS-Related Opportunistic InfectionsReverse Transcriptase InhibitorsTreatment OutcomeSimian Acquired Immunodeficiency SyndromeAntiviral AgentsPlasmaSimian immunodeficiency virusCoinfectionCD8-Positive T-LymphocytesSouth AfricaDisease ProgressionPregnancy Complications, InfectiousBotswanaVirus ReplicationTime FactorsGenotypeProspective StudiesNevirapineDrug Therapy, CombinationHepacivirusBranched DNA Signal Amplification AssayGenetic LoadHIV Long-Term SurvivorsVirus SheddingPolymerase Chain ReactionHepatitis CPatient ComplianceMacaca mulattaRitonavirHepatitis C, ChronicLamivudineLymphoma, AIDS-RelatedZidovudineTreatment FailureUgandaBenzoxazinesStavudineCD4-CD8 RatioLopinavirRetrospective StudiesMedication AdherenceCytomegalovirus InfectionsDrug MonitoringPapillomavirus InfectionsReagent Kits, DiagnosticCytomegalovirus RetinitisAIDS Dementia ComplexRisk FactorsOrganophosphonatesLongitudinal StudiesCytomegalovirusSarcoma, KaposiHepatitis B, ChronicHepatitis B virusCross-Sectional StudiesImmune Reconstitution Inflammatory SyndromeIndinavirLymphocyte CountBacterial LoadRibavirinAntibodies, ViralAIDS VaccinesVirus LatencyFollow-Up StudiesLeukocytes, MononuclearEpstein-Barr Virus InfectionsHIV Protease InhibitorsHIV Core Protein p24Interferon-alphaPrevalencePolyomavirus InfectionsProvirusesSpecimen HandlingVirus ActivationKenyaVirologyAlanine TransaminaseHIV AntibodiesDidanosineDrug Administration ScheduleReverse Transcriptase Polymerase Chain ReactionWeight-BearingPyrimidinones