That is not what that article said. From the article:
The primary purpose of vaccination, though, is to prevent serious illness — and on that front, the data are overwhelmingly clear that vaccination is still quite effective.
“The data generally suggest something like 20-30% efficacy against infection in the omicron era. Not high,” Johns Hopkins University epidemiologist Dr.
David Dowdy said in an email. “But protection against severe disease remains strong.”
Indeed,
numerous studies have found that there is a small decline relative to earlier variants, but the level of protection against the worst outcomes remains high. CDC
analyses, for instance, show that two doses of an mRNA vaccine reduce the risk of hospitalization by 64% four to six months after the last dose, with protection rising to 84% with a booster after the same amount of time. Protection is even higher in the first months following a shot and against critical illness and death.
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