Thesars-Cov-2isanenvelopedp-coronavirus, circularorlipticalParticlediameroFbout60 ~ 140nm, oft ppleomorphic, augljóslega DifferentFromsars-Covandmers-Covingeneticcharacteristics CanrapidlyDevelopintoseverepneumonia, öndunarfærir, acuterespiratorydrestresssyndome, Septicshock, Multi-Organfailure, Severeacid-BasemetabolismDisorder, andevenlife-ógnandi .SARS-CoV-2hasbeenidentifiedasthemainmeansoftransmissionthroughrespiratorydroplets(sneezing,coughing,etc.)andcontact(pickingnostrilwiththehandincontactwiththevirus,rubbingeyes,etc.).SARS-CoV-2issensitivetoultravioletrayandheat,andcanbeinactivatedat56℃for30minutesandbyfatsolublesolventsuchasethylether,75%ethanol,chlorinedisinfectant,peraceticacidandchloroform.