Pfizer CEO hais tias ob koob tshuaj tiv thaiv Covid tsis yog ' txaus rau omicron'

Pfizer CEO Albert Bourla hais lus hauv xov xwm tom qab mus saib xyuas kev tsim cov tshuaj tiv thaiv Pfizer-BioNtech COVID-19 ntawm lub Hoobkas ntawm Asmeskas cov tuam txhab tshuaj Pfizer hauv Puurs, Bel ...