Thesars-cov-2isanenennationedβ-coronafirws, cylcholorellipticalparticlediameterofabout60 ~ 140nm, yn aml yn dop, yn amlwg yndifferentfromsars-covandmers-covingeneticcharacteristics.themainclinicalhifestionsinationsinationsinationsinations cludefever, blinderAndersystemiconsymptoms, cyd-fynd âBydrycough, dyspnea, ac ati, sy'n cael eu darapoDlydeationventoseverepneumonia, anadlol, acuterespiratoryDistresssyndrome, septicshock, septicshock, aml-organfailure, difrifol reacid-basetabolismdisorder, andevenlife-bygythiad.sars-cov-2hasbeenidentifiedasthemainmeansoftransmissionthroughpiratordrollets (tisian, pesychu, ac ati.) AC hthevirus,rubbingeyes,etc.).SARS-CoV-2issensitivetoultravioletrayandheat,andcanbeinactivatedat56℃for30minutesandbyfatsolublesolventsuchasethylether,75%ethanol,chlorinedisinfectant,peraceticacidandchloroform.