U.S. health regulators cleared booster doses of the Covid-19 vaccines from Pfizer Inc. and BioNTech SE and from Moderna Inc. for all adults in the U.S., widening the booster campaign as officials worry about a recent uptick in cases.
The U.S. Food and Drug Administration’s decision Friday essentially makes an additional dose a standard part of Covid-19 vaccinations now, though some people in the U.S. had found ways to get boosters even if they weren’t eligible and some states widened eligibility.
