Do I need a COVID-19 vaccine booster to protect from delta and other variants?

The News Craving

With more contagious variants of the COVID-19 virus spreading just as people are starting to feel comfortable reentering society, talk about the benefit of vaccine boosters is amping up. Pfizer is seeking approval for a third dose of its vaccine, given as a booster, and some countries, including Britain and Israel, have already said they will boost vulnerable populations. Yet the U.S. Centers for Disease Control and Prevention and the Food and Drug Administration have said boosters are not currently necessary for fully vaccinated Americans. What gives? We talked to the University of Pennsylvan…

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