antibodies directed against strain-specific and common antigenic sites of h1n1 influenza virus hemagglutinin were tested comparatively , using monoclonal antibodies raised against strain a/brazil/11/78 and polyclonal antibodies directed against strains a/brazil/11/78 , a/ussr/97/77 , a/pr/301/54 , and a/fm/1/47 .
C0003241
antibodies
C0003250
monoclonal