BirdsStruthioniformesDucksChickensGalliformesParakeetsInfluenza in BirdsTurkeysCoturnixBird DiseasesParrotsPoultry DiseasesQuailInfluenza A Virus, H9N2 SubtypeSpecies SpecificityGeeseColumbidaeFeathersInfluenza A Virus, H5N1 SubtypeAnimals, WildEaglesSongbirdsCharadriiformesInfluenza A virusPoultryPsittaciformesFinchesPasseriformesBursa of FabriciusSparrowsAvian ProteinsPhylogenyMolecular Sequence DataChick EmbryoHemagglutinin Glycoproteins, Influenza VirusSequence Analysis, DNAWest Nile virusOvipositionMammalsBase SequenceEvolution, MolecularAmino Acid SequenceSequence AlignmentOrthomyxoviridae InfectionsBiological EvolutionAntibodies, ViralBiodiversityInfluenza, HumanEcosystemSwineSeasonsVirulenceSequence Homology, Amino AcidVirus ReplicationGenetic VariationDNA PrimersRNA, MessengerLiverCloning, MolecularPolymerase Chain ReactionBrainCells, Cultured