Influenza A virusInfluenza, HumanInfluenza A Virus, H1N1 SubtypeInfluenza A Virus, H5N1 SubtypeInfluenza in BirdsInfluenza A Virus, H3N2 SubtypeInfluenza VaccinesHemagglutinin Glycoproteins, Influenza VirusInfluenza A Virus, H9N2 SubtypeOrthomyxoviridae InfectionsInfluenza B virusBirdsOrthomyxoviridaeReceptors, VirusVirus ReplicationVaccinia virusRNA VirusesInfluenza A Virus, H7N7 SubtypeNeuraminidaseDucksInfluenza A Virus, H7N9 SubtypeHemagglutinins, ViralVirus SheddingVirus CultivationAntibodies, ViralReassortant VirusesPhylogenyHemagglutination Inhibition TestsViral ProteinsDisease OutbreaksVirus DiseasesMolecular Sequence DataPoultryRNA, ViralGenes, ViralSimian virus 40Virus AssemblyDefective VirusesCell LineAntigens, ViralPlant VirusesChickensDNA VirusesSindbis VirusMeasles virusFerretsPandemicsAntiviral AgentsRabies virusDogsAmino Acid SequenceInfluenza A Virus, H3N8 SubtypeInfluenza A Virus, H5N2 SubtypeRespiratory Syncytial VirusesHepatitis B virusInfluenza A Virus, H7N1 SubtypeAvian leukosis virusWest Nile virusChick EmbryoInfluenza A Virus, H2N2 SubtypeInfluenza A Virus, H1N2 SubtypeVirus ActivationPoultry DiseasesVesicular stomatitis Indiana virusNeutralization TestsOseltamivirSwineSpecies SpecificityVero CellsCercopithecus aethiopsVirus LatencyVirionVaccinationViral Plaque AssaySimian immunodeficiency virusOncogenic VirusesParainfluenza Virus 1, HumanVirus AttachmentSeasonsDNA, ViralMumps virusSequence Analysis, DNAMosaic VirusesSemliki forest virusHepatitis A virusN-Acetylneuraminic AcidVirus InactivationBK VirusAvian Sarcoma VirusesVaccines, InactivatedGene Expression Regulation, ViralTumor Virus InfectionsJC VirusHIV InfectionsPolymerase Chain ReactionViruses, UnclassifiedMadin Darby Canine Kidney CellsRespiratory Syncytial Virus InfectionsVirulenceVaccines, Attenuated