title: Methods for biologic preparation, isolation, identification and characterization of avian influenza A viruses.
mesh_terms: D006389:Hemagglutinins, Viral / Q000032:analysis; D007106:Immune Sera; D009980:Influenza A virus / Q000276:immunology*; D009439:Neuraminidase / Q000276:immunology; D014776:Virus Cultivation
chemical_list: D006389:Hemagglutinins, Viral; D007106:Immune Sera; D009439:Neuraminidase