The role of the neuraminidase of the infecting virus in the production of noninfectious (von Magnus) influenza virus.
D000818:Animals; D000937:Antigen-Antibody Reactions; D002642:Chick Embryo; D046508:Culture Techniques; D006389:Hemagglutinins, Viral / Q000096:biosynthesis; D007106:Immune Sera; D009439:Neuraminidase / Q000378:metabolism*; D009975:Orthomyxoviridae / Q000201:enzymology / Q000254:growth & development / Q000378:metabolism / Q000472:pathogenicity*; D011817:Rabbits; D014779:Virus Replication
D006389:Hemagglutinins, Viral; D007106:Immune Sera; D009439:Neuraminidase