Pfizer and BioNTech announced that their COVID-19 vaccine was more than 90% effective amongst more than 43,000 patients. A milestone in the journey to an approved vaccine, the two companies still have more testing to do to meet Food and Drug Administration safety requirements.
Here & Now‘s Peter O’Dowd speaks with Dr. Joshua Sharfstein of Johns Hopkins about the announcement.
This article was originally published on WBUR.org.
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