US Food and Drug Administration staff have confirmed data showing Johnson & Johnson’s single-shot Covid-19 vaccine is safe and effective, and found it worked nearly as well at preventing severe disease caused by the variant first discovered in South Africa.
美国食品药品监督管理局(FDA)的工作人员确认了强生公司(Johnson & Johnson)的数据,这些数据显示该公司的单剂新型冠状病毒肺炎(COVID-19,即2019冠状病毒病)疫苗安全有效,而且发现其对预防最早发现于南非的变种所引发的重症几乎同样有效。
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