title: [Adaptation of freshly isolated strains of influenza viruses. I. Neuraminidase activity].
mesh_terms: D000818:Animals; D002460:Cell Line; D002642:Chick Embryo; D006386:Hemagglutination Tests; D009439:Neuraminidase / Q000378:metabolism*; D009975:Orthomyxoviridae / Q000201:enzymology* / Q000302:isolation & purification; D014776:Virus Cultivation
chemical_list: D009439:Neuraminidase
vernacular_title: Badania nad adaptacja świezo izolowanych szczepów wirusa grypy. I. Aktywność neuraminidazy.