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FDA says a coronavirus vaccine would have to be at least 50% effective to be approved

June 30, 2020
Elizabeth Weise, USA TODAY FDA says a coronavirus vaccine would have to be at least 50% effective to be approved

A coronavirus vaccine would ideally be proven to be at least 50% effective for the Food and Drug Administration to approve it.

      

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June 30, 2020 at 02:58PM
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