Anti-HIV AgentsAntiretroviral Therapy, Highly ActiveHIV InfectionsReverse Transcriptase InhibitorsCD4 Lymphocyte CountZidovudineHIV-1Drug Therapy, CombinationAnti-Retroviral AgentsViral LoadDrug Resistance, ViralHIVHIV Protease InhibitorsAcquired Immunodeficiency SyndromeNevirapineMedication AdherenceSouth AfricaInfectious Disease Transmission, VerticalBenzoxazinesAIDS-Related Opportunistic InfectionsStavudineRNA, ViralRitonavirOrganophosphonatesPatient 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