Hemagglutinin Glycoproteins, Influenza VirusInfluenza A virusInfluenza, HumanHemagglutinins, ViralHemagglutininsInfluenza A Virus, H1N1 SubtypeInfluenza VaccinesOrthomyxoviridaeInfluenza in BirdsInfluenza A Virus, H3N2 SubtypeInfluenza A Virus, H5N1 SubtypeGlycoproteinsOrthomyxoviridae InfectionsInfluenza B virusAntibodies, ViralNeuraminidaseAntibodiesHemagglutination Inhibition TestsInfluenza A Virus, H9N2 SubtypeAntibody SpecificityInfluenza A Virus, H3N8 SubtypeReassortant VirusesMolecular Sequence DataAntibodies, MonoclonalBirdsAntibodies, NeutralizingVirus ReplicationCell LineInfluenza A Virus, H7N7 SubtypeReceptors, VirusPandemicsViral ProteinsAntigens, ViralInfluenza A Virus, H2N2 SubtypeDucksInfluenza A Virus, H5N2 SubtypeVirus SheddingAmino Acid SequenceDogsAntibody FormationMadin Darby Canine Kidney CellsFerretsCross ReactionsAntibodies, BacterialNeutralization TestsVirus CultivationOseltamivirEpitopesVaccinia virusAntiviral AgentsDisease OutbreaksMeasles virusRNA, ViralMice, Inbred BALB CChickensHemagglutination, ViralInfluenza A Virus, H1N2 SubtypeInfluenza A Virus, H7N9 SubtypeHemagglutination TestsRNA VirusesVaccinationFluorescent Antibody TechniquePoultryPhylogenyVaccines, InactivatedHemagglutinationChick EmbryoGenes, ViralSialic AcidsMembrane GlycoproteinsViral Matrix ProteinsZanamivirCross ProtectionNucleoproteinsGlycosylationN-Acetylneuraminic AcidViral Fusion ProteinsViral Envelope ProteinsVirus DiseasesMembrane FusionAmantadineVirulenceCercopithecus aethiopsSwineAntibody AffinitySeasonsVaccines, AttenuatedVirus AssemblyVirionVero CellsAnseriformesViral Plaque AssaySwine DiseasesViral Core ProteinsVirus AttachmentLungPoultry DiseasesCells, CulturedDefective VirusesSpecies Specificity