Pfizer and BioNTech said that clinical trial data suggested their Covid-19 jab could be effective against the more contagious B.1.351 mutation, which was initially detected in South Africa.
輝瑞(Pfizer)和BioNTech表示，臨床試驗數據顯示，它們研發的新型冠狀病毒肺炎（COVID-19，即2019冠狀病毒病）疫苗對最早在南非發現、更具傳染性的B.1.351變種有效。
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