O leSARS-CoV-2isa-envelopedβ-coronavirus,circularorellipticalparticlediameter pe tusa o le 60~140nm,e masani ona pleomorphic,e manino lava e ese mai leSARS-CoVandMERS-CoVingenetic characteristics.The mainclinical manifestations include, lelava, ma'i ma'i, maʻiʻaʻi, maʻiʻaʻi. lydevelopintoseverepneumonia, fa'aletonu le manava, ma'i tigaina manava, septicshock, tele-organ failure, severeacid-basemetabolism disorders, ma le ola e lamatia ai. .SARS-CoV-2 ua fa'ailoaina o le uiga ole fe'avea'i e ala ile manava manava(mafatua, tale, ma isi mea) ma fa'afeso'ota'i(pi'i isumu ma le lima e feso'ota'i ma le siama, mata olo, ma isi). %ethanol,chlorinedisinfectant,peraceticacidandchloroform.