title: Sources of influenza.
mesh_terms: D000818:Animals; D000956:Antigens, Viral; D001715:Bird Diseases / Q000276:immunology; D001717:Birds; D002415:Cats; D002417:Cattle; D004197:Disease Reservoirs; D004285:Dogs; D005827:Genetics, Microbial; D006801:Humans; D007251:Influenza, Human / Q000209:etiology* / Q000276:immunology; D009439:Neuraminidase; D013552:Swine
chemical_list: D000956:Antigens, Viral; D009439:Neuraminidase