关于h7n9的英语演讲稿

关于h7n9的英语演讲稿 Good afternoon,ladies and gentlemen.my name is .......Today,I’m great honored to share

关于h7n9的英语演讲稿 Goodafternoon,ladiesandgentlemen.mynameis .......Today,I’mgreathonoredtosharetheknowledgeof H7N9withyou. H7N9isanewfluvirus,whichwasfoundedinShanghaiand An’huiprovincefirstly.Uptonow,therehasbeennovaine tofightagainstthevirus.Byinvestigation,scientistshave foundthatthegeneofH7N9influenzavirusesfromthe geicrebinationofWildbirdsfromNortheastAsiaand chickeninShanghai,ZhejiangandJiangsuprovince. H7N9,HstandsforHemagglutininthatcanbedividedinto15 Subtypes,NstandsforNeuraminidasethatconsistsof9 Subtypes.Influenzavirusesofallhumanbeingscancause thepoultryinfected,butnotalloftheinfluenzavirusof poultrycaninfecthumans.Ininfluenzaviruses,H3,H5, H7,H9canbetransmittedtohumans,H5ishighly pathogenic.H3caninfectdogsandhumans.H7N9previously onlyfoundinpoultryandfoundnoextraordinaryinfection. Aboutthebiologicalcharacteristicsofthevirus ,virulenceandspreadofpower,thereisnobasisfor analysisandjudgment. H7N9’sincubationperiodisgenerallylessthan7 days.Patientsgenerallypresentflu-likesymptoms,suchas fever,coughwithlittlephlegm,andmaybeassociatedwith headache,muscleaches,andgeneralmalaise.Patientswith