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FDA Upholds 95% Effectiveness For Pfizer Vaccine05:12
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In a report published Tuesday morning, the Food and Drug Administration has confirmed the 95% effectiveness rate of the Pfizer vaccine. It has also noted no serious side effects, paving the way for emergency authorization of the vaccine as soon as Friday.

Host Robin Young speaks with NPR science desk correspondent Richard Harris about the approval process.

This segment aired on December 8, 2020.

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