title: Interferon formation and multiplication of virulent and avirulent strains of Newcastle disease virus in chick embryos.
mesh_terms: D000818:Animals; D002642:Chick Embryo / Q000378:metabolism*; D007372:Interferons / Q000096:biosynthesis*; D009522:Newcastle disease virus / Q000378:metabolism*; D014776:Virus Cultivation
chemical_list: D007372:Interferons