Statement from NIH and BARDA on the FDA Emergency Use Authorization of the Moderna COVID-19 Vaccine
FDA briefing document on Moderna’s vaccine (pdf)
… Throughout each stage of clinical testing, the Moderna vaccine proved to be safe and highly effective at preventing symptomatic COVID-19. In a study of more than 30,000 people, it demonstrated 94% efficacy, and subsequent analyses have revealed that the vaccine induces a durable immune response. There is much we still do not know about SARS-CoV-2 and COVID-19. However, we do know that this vaccine is safe and can prevent symptomatic COVID-19 and severe disease.
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