title: Demonstration of "all or none" rule in the antiviral activity of complement.
authors: Institute of Preventive Medicine, Tallinn, Estonia SSR, USSR.
authors: K
authors: K
authors: Subi
mesh_terms: D000914:Antibodies, Viral / Q000097:blood; D003165:Complement System Proteins / Q000276:immunology*; D006385:Hemagglutination Inhibition Tests; D006389:Hemagglutinins, Viral / Q000276:immunology; D006801:Humans; D009980:Influenza A virus / Q000276:immunology*; D009981:Influenza B virus / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D006389:Hemagglutinins, Viral; D003165:Complement System Proteins