The chief executive of Moderna has predicted that existing vaccines will be much less effective at tackling Omicron than earlier strains of Covid-19 and warned it would take months before pharmaceutical companies can manufacture new variant-specific jabs at scale.
莫德納(Moderna)首席執行官預測，現有疫苗在應對Omicron方面的效果將遠不如應對此前的Covid-19毒株。他警告稱，制藥公司需要幾個月時間才能大規模生產新的變種疫苗。
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