definiens: means any Polypeptide - based Product for any and all uses in the Field of Prevention of Infection with Pandemic Influenza Virus, where such Product contains one or more Antigen utilized in the Seasonal Interpandemic Int1\lellZa Product ( a ) for use solely for thepreverJ.tion of an outbreak of serious illness an sing frominfectionby'an iniJ.uenzR hern.~gglutinin ~ l?type.viIUs for ' \Yhicll thehumanpopulatiollhas not been exposed, and has little if any mumty, and ( b ) for use solely for the prevention, . of a worldwide ' outbreak arising Jrom : . hum(lI1 - to ~ l1umall . infection,:from such.virus . For clarity, Pandelllic, Influenza Product'does not include egg culture or cell culture whole killed or split killed viruses