COVID booster shots: how long do they stop omicron variant symptoms?

New data offers a massive clue as to how long the COVID-19 vaccine booster stops symptoms of the omicron variant.

The news: Researchers from the UK Health Security Agency reported new data last Friday on how long the COVID-19 vaccine booster can stop the omicron variant.

  • The risk of COVID-19 infection drops to 70% about two weeks after the third injection of the Pfizer vaccine.
  • Three months later, the risk of symptomatic COVID-19 is around 50%, according to the data.

Yes, but: A separate research analysis found that protection will drop to 40% approximately four months after the COVID-19 booster.

Quote: “The effectiveness of the vaccine against infection depends on our level of antibodies because they are really our first line of defense against SARS-CoV-2,” said immunologist Jennifer Gommerman of the University of Toronto, according to NPR.

  • “Also keep in mind that omicron is very different from the original version of SARS-CoV-2, which we were immunized against,” Gommerman said. “And so our protection takes a hit in terms of the ability of these antibodies to recognize the omicron.”

Fourth shot: Earlier this week, I reported for the Deseret News that a preliminary study from Israel found that the fourth COVID-19 vaccine – yes, the fourth vaccine – may not stop COVID-19 infection. 19.

  • The fourth vaccine created antibodies that were “probably not enough for the omicron,” said Gili Regev-Yochay, director of the infectious disease unit at Sheba Medical Center, according to The Hill.
  • “We now know that the level of antibodies needed to protect and not be infected by the omicron is probably too high for the vaccine, even if it is a good vaccine,” she added. .

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