title: A method for detecting Newcastle disease virus of low virulence in poultry vaccines.
mesh_terms: D000818:Animals; D001315:Australia; D002642:Chick Embryo; D006385:Hemagglutination Inhibition Tests / Q000662:veterinary; D006386:Hemagglutination Tests / Q000662:veterinary; D009521:Newcastle Disease / Q000276:immunology; D009522:Newcastle disease virus / Q000302:isolation & purification*; D011201:Poultry Diseases / Q000276:immunology*; D014765:Viral Vaccines / Q000009:adverse effects* / Q000592:standards; D014774:Virulence
chemical_list: D014765:Viral Vaccines