Heterocyclic Compounds, Bridged-RingDrug Resistance, ViralDrug ResistanceHIV InfectionsDrug Resistance, NeoplasmAnti-HIV AgentsDrug Resistance, MultipleDrug Resistance, MicrobialDrug Resistance, BacterialHIV-1Lost to Follow-UpAnti-Retroviral AgentsHIVHIV ProteaseDrug Resistance, Multiple, ViralHIV Reverse TranscriptaseMutationReverse Transcriptase InhibitorsDrug Resistance, Multiple, BacterialHIV Protease InhibitorsWorld Health OrganizationNamibiaHIV SeropositivityViral LoadDrug Resistance, FungalGenotypeMicrobial Sensitivity TestsDried Blood Spot TestingAntitubercular AgentsAnti-Bacterial AgentsGenotyping TechniquesAntiretroviral Therapy, Highly ActiveP-GlycoproteinDisease ResistanceSentinel SurveillancePrevalenceCameroonVascular ResistanceAntineoplastic AgentsTreatment FailureTuberculosis, Multidrug-ResistantCD4 Lymphocyte CountPopulation SurveillanceMolecular Sequence DataAntimalarialsCell Line, TumorSequence Analysis, DNAMedication AdherenceHIV SeroprevalenceDeveloping CountriesTreatment OutcomeTime FactorsMycobacterium tuberculosisAsia, SoutheasternDoxorubicinMultidrug Resistance-Associated ProteinsATP-Binding Cassette TransportersHIV SeronegativityR FactorsRNA, ViralSubstance Abuse Treatment CentersGenes, MDRIsoniazidTetracycline ResistanceStreptomycinChloroquineDrug Resistance, Multiple, FungalPenicillin ResistanceBase SequenceCohort StudiesParasitic Sensitivity TestsApoptosisPlasmodium falciparumTetracyclinePolymerase Chain ReactionPatient CompliancePhenotypeRifampinTumor Cells, CulturedBacterial ProteinsAcquired Immunodeficiency SyndromeEscherichia coliDrug Therapy, CombinationAntiviral AgentsCell SurvivalPlant DiseasesAmino Acid SequencePyrimethamine