As a scientist leading a company focused on RNA, I have cheered Pfizer, BioNTech, Moderna, and others as the biopharmaceutical industry raced to create vaccines that will end the tragic loss of life and the economic devastation wrought by Covid-19.
So far, two Covid-19 vaccines, one from Pfizer/BioNTech and one from Moderna, have been approved by the FDA under emergency use authorizations. Both are RNA-based vaccines that show strong efficacy and few side effects. Other vaccines, using other technologies, have been approved for use in other countries.
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