Thesars-Cov, 2ISANENVERIFEDΒ, coronavirus, circularorellipticalparticlediametoferofabout60 ~ 140nm, saepepleomorphic, obviouslydifflerentfromsarsarsarsarsar, Covandmers, Covingeneticchracteristics.themainclinalmanifestsics.themainmanmanifestsics.themainmanmaniftSin.theNsar cludefever,fatigueandothersystemicsymptoms,accompaniedbydrycough,dyspnea,etc.,whichcanrapidlydevelopintoseverepneumonia,respiratoryfailure,acuterespiratorydistresssyndrome,septicshock,multi-organfailure,seve Redoacid-Basemetabolismdisorder, andevenlife, minassarsarsarsarsarsarsar, 2HasbeenidentifiedalentaledasthemainmeansoftRansmissionthroughroughRespiratioinmeansoftRansmissionthryspirationesp (Sternezing, tussis, etc.) Andcontact (pickingnostrilwiththehandincontactwit Hthevirus, Rubbingeyes, etc.). Sars, Cov-2issensitiveToulTravoletrayandheat, andcanbeinactivedit56 ℃ for3Mminutesandbyfatsolublysolventsolchasethyllether, LXXV% Ethanol, chloredisether, Pearecetetandchloroform.