Viral LoadHIV InfectionsCD4 Lymphocyte CountHIV-1Anti-HIV AgentsDrug ResistanceAntiretroviral Therapy, Highly ActiveDrug Resistance, ViralDrug Resistance, NeoplasmDrug Resistance, MultipleDrug Resistance, MicrobialDrug Resistance, BacterialDrug Resistance, Multiple, BacterialDrug Resistance, FungalMutationMicrobial Sensitivity TestsDrug Resistance, Multiple, ViralAnti-Bacterial AgentsRNA, ViralDisease ResistanceGenotypeP-GlycoproteinAntitubercular AgentsVascular ResistanceAnti-Retroviral AgentsAntineoplastic AgentsTuberculosis, Multidrug-ResistantTreatment OutcomeTime FactorsMolecular Sequence DataViremiaAntiviral AgentsPolymerase Chain ReactionReverse Transcriptase InhibitorsHIV ProteaseHIV Reverse TranscriptaseHIVAntimalarialsDNA, ViralTreatment FailureMultidrug Resistance-Associated ProteinsSequence Analysis, DNAMycobacterium tuberculosisHIV Protease InhibitorsDoxorubicinCell Line, TumorR FactorsATP-Binding Cassette TransportersGenes, MDRTetracycline ResistanceDrug Therapy, CombinationPenicillin ResistanceStreptomycinDrug Resistance, Multiple, FungalChloroquineBase SequenceProspective StudiesPhenotypeIsoniazidCohort StudiesTetracyclineRetrospective StudiesReverse Transcriptase Polymerase Chain ReactionBacterial ProteinsPlasmaDisease ProgressionAcquired Immunodeficiency SyndromePlant DiseasesMutation, Missensepol Gene Products, Human Immunodeficiency VirusAirway ResistanceRifampinDNA, BacterialParasitic Sensitivity TestsPlasmodium falciparumEscherichia coliNevirapineSouth AfricaOrganophosphonatesVirus ReplicationAmino Acid SequencePrevalencePyrimethamineInfectious Disease Transmission, VerticalSimian Acquired Immunodeficiency SyndromeApoptosisSimian immunodeficiency virusConjugation, GeneticPlasmidsCD4-Positive T-LymphocytesFollow-Up StudiesPhylogenyHIV SeropositivityRisk FactorsTumor Cells, CulturedMembrane Transport ProteinsImmunity, InnateCisplatinLamivudineDose-Response Relationship, Drug