Influenza in BirdsInfluenza A Virus, H5N1 SubtypeInfluenza A virusInfluenza, HumanHemagglutinin Glycoproteins, Influenza VirusInfluenza A Virus, H9N2 SubtypeBirdsInfluenza A Virus, H1N1 SubtypeInfluenza VaccinesPoultryDucksOrthomyxoviridae InfectionsInfluenza A Virus, H5N2 SubtypeAnseriformesInfluenza A Virus, H3N2 SubtypeInfluenza A Virus, H7N7 SubtypeOrthomyxoviridaeReassortant VirusesCloacaInfluenza B virusNeuraminidaseChickensInfluenza A Virus, H7N1 SubtypePoultry DiseasesVirus SheddingInfluenza A Virus, H3N8 SubtypeInfluenza A Virus, H7N9 SubtypeHemagglutinins, ViralHemagglutination Inhibition TestsAnimals, WildGeeseDisease OutbreaksInfluenza A Virus, H7N2 SubtypeAntibodies, ViralCharadriiformesInfluenza A Virus, H7N3 SubtypeFerretsVirus ReplicationBird DiseasesPhylogenyAnimal MigrationInfluenza A Virus, H2N2 SubtypePandemicsViral ProteinsOseltamivirHemagglutininsZoonosesRNA, ViralMolecular Sequence DataVirulenceInfluenza A Virus, H1N2 SubtypeRNA ReplicaseReceptors, VirusInfluenzavirus ADogsAntiviral AgentsAntigens, ViralMadin Darby Canine Kidney CellsChick EmbryoCell LineVaccines, InactivatedDelawareVirus CultivationNucleoproteinsGenes, ViralZanamivirSequence Analysis, DNAViral Matrix ProteinsChinaVaccinationTurkeysRespiratory SystemHost SpecificitySeasonsRNA VirusesMice, Inbred BALB CVirus InactivationVirologyLungSpecific Pathogen-Free OrganismsHemagglutination, ViralVaccinia virusVaccines, AttenuatedHost-Pathogen InteractionsSpecies SpecificityViral Core ProteinsAmino Acid SequenceNeutralization TestsCross ReactionsViral Nonstructural ProteinsReverse Transcriptase Polymerase Chain ReactionVietnamSwine DiseasesSwineCommunicable Diseases, EmergingVirus AttachmentGenome, ViralAmantadineCross ProtectionPyrans