U.S. regulators are telling COVID-19 vaccine makers to tweak any booster doses intended for fall so they protect against the newest omicron relatives
FILE - A Northwell Health registered nurse fills a syringe with a COVID-19 vaccine at a pop up vaccination site the Albanian Islamic Cultural Center, April 8, 2021, in the Staten Island borough of New York. The Food and Drug Administration on Thursday, June 30, 2022 recommended that COVID-19 booster shots be modified to better match more recent variants of the coronavirus. U.S.
But the combination approach, what scientists call “bivalent” shots, would allow the boosters to retain the proven benefits of the original vaccine while adding to its breadth of protection. It’s a common vaccine strategy: Flu shots, for instance, can protect against four influenza strains and are tweaked annually depending on what's circulating.
“We’re continuing to collect more data from our study on BA.4/5 and will be in touch as soon as we are ready to submit,” Pfizer spokeswoman Jerica Pitts said in an emailed message.
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