NevirapineZidovudineAnti-HIV AgentsReverse Transcriptase InhibitorsInfectious Disease Transmission, VerticalHIV InfectionsStavudineLamivudineBenzoxazinesDidanosineHIV-1Pregnancy Complications, InfectiousDrug Resistance, ViralHIV Reverse TranscriptaseDrug Therapy, CombinationCD4 Lymphocyte CountZalcitabineViral LoadOxazinesDideoxynucleotidesAcquired Immunodeficiency SyndromeAntiretroviral Therapy, Highly ActivePlasmaLopinavirIndinavirAnti-Retroviral AgentsPyrimidinonesDideoxynucleosidesAIDS-Related ComplexPregnancyRNA, ViralRitonavirBotswanaOrganophosphonatesHIV Protease InhibitorsDrug InteractionsOxidoreductases, N-DemethylatingHIVTreatment FailureUgandaNelfinavirInfant, NewbornAdenineDelavirdineExanthemaDrug Resistance, Multiple, ViralHIV Core Protein p24Breast FeedingDrug Administration ScheduleBurundiMilk, HumanAntiviral AgentsCote d'IvoireMalawiZambiaThymine NucleotidesDrug Resistance, MicrobialRNA-Directed DNA PolymeraseLipodystrophySaquinavirDouble-Blind MethodSouth AfricaMutationDrug EruptionsThailandHIV SeropositivityPregnancy Trimester, ThirdTreatment OutcomeTabletsArea Under CurveNucleosidesDried Blood Spot TestingDrug-Induced Liver InjuryPostpartum PeriodChromatography, High Pressure LiquidGenotypeGenes, polChemopreventionDrug CombinationsAryl Hydrocarbon HydroxylasesRifampinHIV-Associated Lipodystrophy SyndromeMutation, MissenseDrug MonitoringDrugs, GenericHalf-LifeAdministration, OralTrimethoprim-Sulfamethoxazole CombinationLabor, Obstetric