TheSARS-CoV-2isanenvelopedβ-coronavirus,circularorellipticalparticlediameterof=60~140nm, saepepleomorphicus, manifesto differens ab SARS-CoVandMERS-CoVingeneticcharacteristics. cludefever, lassitudo et systemica ymptoma, comitatus bydrycough, dyspnoea, etc. reacid-basemetabolismdisorder, andevenlife-threatening.SARS-CoV-2hasbeenidentifiedasthemainmeans oftransmissionthroughrespiratorydroplets hthevirus, rubingoes, etc.).SARS-CoV-2issensitivetoultravioletrayandheat,canbeinactivatedat56℃for30minuta et fatsolubilia dissolventia utethylether,75% ethanol, chlorinedisinfectant, peraceticacidadchloroformi.