title: Isolation of an influenza virus subtype Hav4Navl from a budgerigar.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral; D001717:Birds; D006385:Hemagglutination Inhibition Tests; D006386:Hemagglutination Tests; D007106:Immune Sera / Q000494:pharmacology; D005779:Immunodiffusion; D009980:Influenza A virus / Q000276:immunology / Q000302:isolation & purification* / Q000648:ultrastructure; D009439:Neuraminidase / Q000494:pharmacology
chemical_list: D000914:Antibodies, Viral; D007106:Immune Sera; D009439:Neuraminidase