Will We Need a Second COVID-19 Booster Shot?

The U.S. Food and Drug Administration is exploring the possibility that Americans will need a fourth COVID-19 vaccination. However, Pfizer and Moderna have mixed reviews with the former saying another shot is “necessary” while the latter believes only those in certain groups will require it. All this comes as virus cases surge in China and Europe and as the U.S. shifts its strategy once again and tries to return life to normal.

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