Reassortant VirusesPandemicsInfluenza A Virus, H1N1 SubtypeInfluenza, HumanInfluenza A Virus, H5N1 SubtypeInfluenza A Virus, H3N2 SubtypeOrthomyxoviridae InfectionsInfluenza A virusFerretsVirus ReplicationHemagglutinin Glycoproteins, Influenza VirusRNA VirusesGenes, ViralInfluenza VaccinesInfluenza in BirdsInfluenza A Virus, H9N2 SubtypeNeuraminidaseVaccinia virusEncephalitis Virus, CaliforniaMammalian orthoreovirus 3Viral ProteinsVirus SheddingReceptors, VirusVaccines, AttenuatedRNA, ViralVirus CultivationRotavirusSaimiriAntigens, ViralPhylogenyInfluenza A Virus, H1N2 SubtypeDisease OutbreaksReoviridaeVirus DiseasesBirdsHemagglutinins, ViralSimian virus 40VirulenceOrthoreovirusCapsid ProteinsVirus AssemblyDucksPlant VirusesReoviridae InfectionsDNA VirusesMolecular Sequence DataDefective VirusesPoultryRecombination, GeneticSindbis VirusMeasles virusRNA ReplicaseRabies virusAntibodies, ViralBunyaviridaeCapsidViral Core ProteinsCell LineHemagglutination, ViralPoultry DiseasesAntiviral AgentsHepatitis B virusSequence Analysis, DNAL Cells (Cell Line)West Nile virusRespiratory Syncytial VirusesLassa virusVero CellsNeutralization TestsSwineHemagglutination Inhibition TestsOrthomyxoviridaeSwine DiseasesVirus ActivationCercopithecus aethiopsViral Plaque AssayDogsBluetongue virusVesicular stomatitis Indiana virusVirus LatencyRotavirus InfectionsChickensReverse GeneticsInfluenza A Virus, H5N2 SubtypeOseltamivirNucleoproteinsSimian immunodeficiency virusInfluenza A Virus, H2N2 SubtypeOncogenic VirusesGenotypeCricetinaeInfluenza A Virus, H7N7 SubtypeGenome, ViralVirionMumps virusParainfluenza Virus 1, HumanMosaic VirusesTemperatureDNA, ViralVirus Attachment