Pfizer and BioNTech’s Covid-19 vaccine starts to work within about 10 days of the first dose, according to new documents released by the US regulator ahead of an advisory meeting this week to discuss whether to grant it emergency approval.
根據美國監管機構發布的最新文件,輝瑞(Pfizer)和BioNTech的新型冠狀病毒肺炎(COVID-19,即2019冠狀病毒病)疫苗在首劑接種后約10天內開始生效。監管機構將在本周舉行咨詢會議,討論是否給予該疫苗緊急批準。
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