title: A sensitive plaque inhibition technique for assay of antibodies to influenza virus: use to detect previous antigenic priming with influenza viruses.
abstract: Plaque reduction test performed in MDCK cells was found to be a more sensitive assay than hemagglutination inhibition, for revealing previous immunological experience with influenza A virus in the population. Based on the preimmunization antibody levels, determined by plaque reduction tests, it was possible to distinguish between previously primed and unprimed subjects among vaccinees.
mesh_terms: D000293:Adolescent; D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis*; D000956:Antigens, Viral / Q000276:immunology; D006801:Humans; D007114:Immunization; D009980:Influenza A virus / Q000276:immunology*; D007252:Influenza Vaccines / Q000276:immunology*; D010948:Viral Plaque Assay
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral; D007252:Influenza Vaccines