GenotypeRNA VirusesVaccinia virusVirus ReplicationReceptors, VirusVirus CultivationVirus SheddingVirus DiseasesSimian virus 40Virus AssemblyPlant VirusesDNA VirusesDefective VirusesMeasles virusHepatitis B virusSindbis VirusInfluenza A Virus, H1N1 SubtypeRabies virusInfluenza A Virus, H5N1 SubtypeRNA, ViralPhylogenyPolymorphism, GeneticInfluenza A Virus, H3N2 SubtypeWest Nile virusPolymerase Chain ReactionRespiratory Syncytial VirusesMolecular Sequence DataGenes, ViralAntigens, ViralSequence Analysis, DNAVirus ActivationViral ProteinsAntiviral AgentsGenetic VariationHepacivirusVesicular stomatitis Indiana virusHemagglutinin Glycoproteins, Influenza VirusVirus LatencyDNA, ViralVero CellsSimian immunodeficiency virusOncogenic VirusesMumps virusCercopithecus aethiopsHepatitis A virusVirionPolymorphism, Single NucleotideParainfluenza Virus 1, HumanMosaic VirusesAllelesNeutralization TestsSemliki forest virusCell LineTumor Virus InfectionsVirus AttachmentViral Plaque AssayGene FrequencyAvian Sarcoma VirusesBK VirusJC VirusGenetic Predisposition to DiseaseViruses, UnclassifiedHepatitis CPhenotypeAvian leukosis virusOrthomyxoviridaeOrthomyxoviridae InfectionsGene Expression Regulation, ViralBluetongue virusCapsidAmino Acid SequenceVirus IntegrationSendai virusHIV InfectionsMoloney murine leukemia virusYellow fever virusRespiratory Syncytial Virus InfectionsDNA PrimersRecombination, GeneticHepatitis E virusRespiratory Syncytial Virus, HumanDNA Virus InfectionsSimplexvirusVirulenceTobacco Mosaic VirusCapsid ProteinsVirus InactivationCytopathogenic Effect, ViralGenetic VectorsMyxoma virusChikungunya virusViral LoadCowpox virusVariola virusTime FactorsCase-Control StudiesInfluenza, HumanNorwalk virusLassa virusSpecies Specificity