Many Americans haven't gotten an initial COVID-19 booster. A second one is authorized for some. Others are waiting to see if they can get one soon. Will everyone need them eventually? An FDA advisory committee met Wednesday to discuss what's next in America's booster strategy.

Dr. Anthony Fauci tells NPR the path forward is paved with uncertainties — about whether more variants will arise, how long booster protection lasts, and what kind of funding will be available for research. Fauci spoke to NPR's Rob Stein, who explains what's likely for booster guidance later this fall.

Whatever the future of the pandemic holds, public health officials are hoping to get early glimpses of it by monitoring waste water treatment plants. John Daley reports.

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Another Booster? Omicron Shot? What's Next For COVID Vaccines

Consider This from NPR

Another Booster? Omicron Shot? What's Next For COVID Vaccines