Covid-19 variant thar leh vaccine chungchangah Global Virus Network-in thuchhuah a siam

Covid-19 variant thar, NB.1.8.1 chu tun hnaiah a leng thar leh a, a bikin Asia khawmualpuiah a darh chak leh hle. Hei bakah US-a bial ṭhenkhatah pawh a leng bawk. He variant thar chungchangah hian Global Virus Network (GVN) chuan thuchhuah siamin, variant dangte aiin a chak zawk tih leh, natna a thlen nasa zawk tia finfiahna a la awm lo tih an tarlang.