AgglutininsGenome, ViralGenetic VariationMolecular Sequence DataHepacivirusFoot-and-Mouth Disease VirusPhylogenyHIV-1Base SequenceEvolution, MolecularAmino Acid SequenceRNA, ViralMutationSequence Analysis, DNAHigh-Throughput Nucleotide SequencingGenes, polSelection, GeneticDrug Resistance, ViralVirus ReplicationHIV InfectionsBiological EvolutionDNA, ViralAntiviral AgentsHIV Envelope Protein gp120Gene Products, polCloning, MolecularSerial PassageHepatitis CViral Nonstructural ProteinsHepatitis C, ChronicSequence Homology, Amino AcidRNA VirusesViral Envelope ProteinsGenes, envGenes, ViralEscherichia coliSequence AlignmentGenotypeViral ProteinsHeteroduplex AnalysisCell LineTranscription, GeneticPolymerase Chain ReactionGenes, BacterialSequence Homology, Nucleic AcidSpecies SpecificityRibavirinDNA PrimersPhenotypePlasmidsSequence HomologyMutagenesisEaglesInterferon-alphaBacterial ProteinsGenetic HeterogeneityRecombinant ProteinsBiological ProductsViremiaViral LoadSaccharomyces cerevisiaeRecombination, GeneticDNA-Directed DNA PolymerasePolymorphism, Single-Stranded ConformationalNucleic Acid HeteroduplexesSequence Analysis, RNAGenome ComponentsHepatitis A Virus, HumanRestriction MappingGene Products, envGenesHemorrhagic Syndrome, BovineRNA, MessengerConsensus Sequenceenv Gene Products, Human Immunodeficiency VirusRNA Virus InfectionsGenetic Complementation TestModels, GeneticTupaia5' Untranslated RegionsVirusesRNA Polymerase IIDNA Polymerase betaInfectious Anemia Virus, EquineDNA-Binding ProteinsLeukocytes, MononuclearTranscription FactorsAphthovirusDNA Polymerase IIIKineticsOpen Reading FramesGenes, FungalTime FactorsMutation RateHIVDNA ReplicationAmino Acid SubstitutionHIV Protease