The Centers for Disease Control recommended the shots that target the newest omicron strains of COVID-19, including one for people 12 and older.
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The move by the Food and Drug Administration tweaks the recipe of shots made by Pfizer and rival Moderna that already have saved millions of lives.
The nation’s top public health agency on Thursday relaxed its COVID-19 guidelines, dropping the recommendation that Americans quarantine themselves if they come into close contact with an infected person.
The Food and Drug Administration authorized use of the more traditional type of vaccine for those 18 and older.
Confirmed COVID-19 cases have risen more than 50 percent in 10 days, the threshold at which the city’s guidelines call for people to wear masks indoors.
There’s evidence protection can wane particularly in higher-risk groups, and for them another booster “will help save lives,” FDA vaccine chief Dr. Peter Marks said.
Two federal advisory committee members say evidence doesnt support a need for four shots.
The Biden administration will significantly loosen federal mask-wearing guidelines to protect against COVID-19 transmission on Friday, according to two people familiar with the matter.
In an extraordinary move, the Food and Drug Administration had urged Pfizer and its partner BioNTech to apply earlier than the companies had planned.
The decision was bolstered by real-world evidence from the more than 200 million doses administered in the U.S. since the FDA cleared the shot in December 2020.