Known as: A-gripi viirus Leningrad antikehad:Acnc:Pt:S:Qn:HAI, Virus influenza A Leningrad , Ac:Concentration arbitraire:Temps ponctuel:Sérum:Quantitatif:Inhibition de l'hémagglutination, Influenza virus A Leningrad Ac [Units/volume] in Serum by Hemaglutination inhibition