Anti-HIV AgentsHIV InfectionsAntiretroviral Therapy, Highly ActiveAnti-Retroviral AgentsCD4 Lymphocyte CountViral LoadHIV-1Drug Resistance, ViralReverse Transcriptase InhibitorsHIVHIV Protease InhibitorsAcquired Immunodeficiency SyndromeZidovudineNevirapineMedication AdherenceSouth AfricaInfectious Disease Transmission, VerticalBenzoxazinesAIDS-Related Opportunistic InfectionsStavudineRNA, ViralRitonavirDrug Therapy, CombinationOrganophosphonatesPatient ComplianceLopinavirHIV-Associated Lipodystrophy SyndromeCohort StudiesLamivudineHIV SeropositivityPregnancy Complications, InfectiousDrug Resistance, Multiple, ViralUgandaAdenineTreatment FailureTreatment OutcomeIndinavirViremiaImmune Reconstitution Inflammatory SyndromeCD4-Positive T-LymphocytesBotswanaLost to Follow-UpPyrimidinonesNelfinavirDidanosineAIDS Dementia ComplexHIV Reverse TranscriptaseMalawiDideoxynucleosidesDrug MonitoringCoinfectionDrug Administration ScheduleCote d'IvoireAfrica South of the SaharaDirectly Observed TherapyHIV ProteaseProspective StudiesZambiaLymphoma, AIDS-RelatedLipodystrophyOxazinesRetrospective StudiesTime FactorsRisk FactorsSaquinavirAfrica, SouthernCross-Sectional StudiesDeveloping CountriesVirus ReplicationZimbabweHIV Wasting SyndromeCytomegalovirus RetinitisPregnancyTuberculosisFollow-Up StudiesPrevalenceAntitubercular AgentsPlasmaDisease ProgressionLesothopol Gene Products, Human Immunodeficiency VirusAntiviral AgentsGenotypeLongitudinal StudiesWithholding TreatmentPyrrolidinonesHIV Fusion InhibitorsTreatment RefusalCD4-CD8 RatioIncidenceDrug InteractionsHIV Integrase InhibitorsThailandHIV Long-Term SurvivorsCameroonKenyaAIDS-Associated NephropathyCD8-Positive T-LymphocytesRwandaHaiti