Americans who got the updated COVID-19 booster shots are better protected against symptomatic infection than those who haven't - at least for now, U.S. health officials said Tuesday.
Updated boosters rolled out by Pfizer and rival Moderna in September have been a hard sell for vaccine-weary Americans. Only about 13% of U.S. adults so far have gotten a “bivalent” shot that targets the omicron strain and the original coronavirus. On Tuesday, White House officials announced a renewed push for more Americans to get the latest shots.
The Centers for Disease Control and Prevention analyzed about 360,000 COVID-19 tests given to people with coronavirus-like symptoms at drugstores around the country between September, when the new boosters rolled out, and early November. Researchers compared the vaccination status of those who wound up having COVID-19 with those who didn't.
But even people who got a summertime booster of the original vaccine before seeking the new fall formula were 30% to 40% more protected than if they'd skipped this latest shot, she said. The original shots have offered strong protection against severe disease and death no matter the variant, but protection against mild infection wanes. CDC's analysis tracked only the first few months of the new boosters' use so it's too early to know how long added protection against symptomatic infection lasts.
To that end, the Biden administration announced a six-week campaign urging people - especially seniors - to get the boosters, saying the shots could save lives as Americans gather for the holidays. “You can decide to trust America's physicians or you can trust some random dude on Twitter,” said Dr. Ashish Jha, the White House COVID-19 coordinator.
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