TheSARS-CoV-2isanenvelopedβ-coronavirus,circularorellipticalparticlediameterofabout60~140nm,oftenpleomorphic,obviouslydifferentfromSARS-CoVandMERS-CoVingeneticcharacteristics.Themainclinicalmanifestationsincludefever,fatigueandothersystemicsymptoms,accompaniedbydrycough,dyspnea,etc.,whichcanrapidlydevelopintoseverepneumonia,respiratoryfailure,acuterespiratorydistresssyndrome,septicshock,multi-organfailure,severeacid-basemetabolismdisorder,andevenlife-threatening . פֿאַר 30מסטאָנסעבאַטעסאָלואַלזאָלוטשאַסעטהעטיקס