{{B}}sEt 4ConvErsAtion orAl rEport{{/B}}

whAt ArE thE stuDEnts mAinly DisCussingA．stAtistiCs ABout mAjor DisEAsEs
B．symptoms oF inFluEnzA inFECtion
C、A、mAjor EpiDEmiC oF inFluEnzA
DiFFErEnt strAins oF thE Flu virus