Tus mob hnyav ua pa nyuaj ua rau tus mob coronavirus 2 (SARS-CoV-2), tus kab mob ua rau tus kab mob tshiab tshaj plaws ntawm tus kab mob coronavirus 2019 (COVID-19) kis thoob qhov txhia chaw, yog qhov zoo-sensitive, ib leeg-stranded RNA tus kab mob nrog lub genome loj ntawm ib ncig ntawm 30 kb. . Ntau qhov sib txawv ntawm SARS-CoV-2 nrog cov cim kev hloov pauv sib txawv tau tshwm sim thoob plaws qhov kev sib kis. Nyob ntawm lawv cov kab mob sib kis kab mob sib kis, qee qhov sib txawv tau pom tias muaj kev sib kis ntau dua, kis kab mob, thiab kis kab mob.

BA.2.86 kab mob ntawm SARS-CoV-2, uas yog thawj zaug pom nyob rau hauv lub yim hli ntuj 2023, yog phylogenetically txawv los ntawm tam sim no circulating Omicron XBB kab, nrog rau EG.5.1 thiab HK.3. Cov kab mob BA.2.86 muaj ntau dua 30 qhov kev hloov pauv hauv cov kab mob sib kis, qhia tias cov kab mob no muaj peev xwm dhau los ntawm kev tiv thaiv yav dhau los tiv thaiv SARS-CoV-2.

JN.1 (BA.2.86.1.1) yog qhov hloov pauv tshiab tshaj plaws ntawm SARS-CoV-2 uas tau nqis los ntawm kab mob BA.2.86. JN.1 muaj qhov kev hloov pauv hloov pauv L455S hauv cov protein ntau thiab peb lwm qhov kev hloov pauv hauv cov protein uas tsis yog kab ntsig. Cov kev tshawb fawb soj ntsuam HK.3 thiab lwm yam "FLip" variants tau pom tias tau txais L455F kev hloov pauv hauv cov kab mob sib kis tau cuam tshuam nrog kev kis kab mob ntau ntxiv thiab muaj peev xwm tiv thaiv kab mob. L455F thiab F456L kev hloov pauv yog lub npe menyuam yaus "Flip”kev hloov pauv vim lawv hloov txoj haujlwm ntawm ob amino acids, sau npe F thiab L, ntawm cov protein ntau.

Peb baysen kho mob tuaj yeem muab covid-19 kuaj tus kheej rau kev siv hauv tsev, txais tos hu rau peb kom paub meej ntxiv.