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April 26, 2022 10:02 pm
Original Link: https://science.slashdot.org/story/22/04/26/2018200/more-than-half-of-americans-have-been-infected-with-covid-19-at-least-once-says-cdc?utm_source=rss
More Than Half of Americans Have Been Infected With COVID-19 At Least Once, Says CDC
The common perception that nearly everyone in America seemed to have acquired the Omicron variant last winter may not have been far from the truth. By February 2022, nearly 60 percent of the population had been infected with the coronavirus, almost double the proportion seen in December 2021, according to data released on Tuesday by the Centers for Disease Control and Prevention. The New York Times reports: "By February 2022, evidence of previous Covid-19 infections substantially increased among every age group," Dr. Kristie Clarke, the agency researcher who led the study, said at a news briefing. Infections rose most sharply during the Omicron surge among children and adolescents, perhaps because many people in those age groups were still unvaccinated. The increase was smallest among adults 65 or older, who have the highest rate of vaccination and may be the most likely to take precautions. The new research suggests that three out of four children and adolescents in the United States had been infected with the coronavirus by February 2022, compared with one-third of older adults. While some studies suggest that prior infection offers a weaker shield against the virus than vaccines do, the resulting antibodies should provide a reasonable degree of protection against severe illness, at least in the short term. "We still do not know how long infection-induced immunity will last," Dr. Clarke said. The gains in population-wide immunity may explain why the new surge that is roaring through China and many countries in Europe has been muted in the United States so far. The findings may offer some comfort to parents who have been waiting anxiously for a vaccine to be approved for the youngest children. Many of those children now seem to have acquired at least some immunity. Even so, Dr. Clarke urged parents to immunize children who qualify as soon as regulators approve a vaccine for them, regardless of any prior infection.Read more of this story at Slashdot.
Original Link: https://science.slashdot.org/story/22/04/26/2018200/more-than-half-of-americans-have-been-infected-with-covid-19-at-least-once-says-cdc?utm_source=rss
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