A new neutralization method for influenza virus in cell culture.
A novel neutralization method (ELISA-NT) has been developed for simple detection of neutralizing antibodies to influenza virus in which type specific soluble (S) CF antigen produced by unneutralized virus was measured by anti-S immune (probe) serum and enzyme-labelled Clq. Neutralizing antibody activity was determined within 48 h and expressed as a new term, NT% of the quantity of neutralized virus. A good correlation was found between NT% determined by the ELISA-NT method and NT titer by the conventional method in 82 human serum samples (r = 0.941 for type A and r = 0.875 for type B of influenza virus, p < 0.01).
Taguchi
F
F
Department of Microbiology, School of Hygienic Sciences, Kitasato University, Japan.
Hashimoto
O
O
Matsuzaki
T
T
Lee
S M
SM
D000818:Animals; D000914:Antibodies, Viral / Q000097:blood* / Q000276:immunology; D000956:Antigens, Viral / Q000276:immunology; D002478:Cells, Cultured; D004285:Dogs; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D009500:Neutralization Tests; D009975:Orthomyxoviridae / Q000276:immunology* / Q000302:isolation & purification
D000914:Antibodies, Viral; D000956:Antigens, Viral