Kev Ntsuam Xyuas Covid Lub Hom Phiaj XBB.1.5 'Kraken' Variant tau tsim los ntawm cov kws tshawb fawb

Topline Swiss pharma loj heev Roche rau hnub Thursday tau tshaj tawm qhov kev sim Covid tshiab tsim los pab cov kws tshawb fawb pom cov kab mob sib kis tau zoo heev omicron offshoot XBB.1.5 - tsis muaj npe hu ua "Kraken" - mutant uas yog ...