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.
根据美国监管机构发布的最新文件,辉瑞(Pfizer)和BioNTech的新型冠状病毒肺炎(COVID-19,即2019冠状病毒病)疫苗在首剂接种后约10天内开始生效。监管机构将在本周举行咨询会议,讨论是否给予该疫苗紧急批准。
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