title: Estimation of Newcastle disease virus concentration by using a sandwich ELISA and measuring neuraminidase activity.
authors.forename: V
authors.initials: V
authors.lastname: Kardi
authors.forename: K
authors.initials: K
authors.lastname: Székely-Tóth
authors.forename: T
authors.initials: T
authors.lastname: Perényi
authors.forename: E
authors.initials: E
authors.lastname: Balla
mesh_terms: D000818:Animals; D002642:Chick Embryo; D004591:Electrophoresis, Polyacrylamide Gel; D004797:Enzyme-Linked Immunosorbent Assay; D009439:Neuraminidase / Q000378:metabolism*; D009522:Newcastle disease virus / Q000201:enzymology / Q000254:growth & development*; D013047:Specific Pathogen-Free Organisms
chemical_list: D009439:Neuraminidase