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09 December 2021 Pfizer and BioNTech have announced that preliminary laboratory studies show that a third dose of the Pfizer / BioNTech vaccine may improve protection against the Omicron variant of the coronavirus.

Two separate studies in Israel, published yesterday, showed booster doses of Pfizer / BioNTech's coronavirus vaccine reduced infections tenfold and reduced Covid-19 deaths by 90%. New England Journal of Medicine, examined the effects of the Israeli booster campaign on all children 12 and older, with the Delta variant spreading in the summer.

While deaths and severe cases were low among fully vaccinated people, boosters significantly decreased this rate.



 "The data released by Pfizer is not surprising. In fact, this is what we have always expected, that there is good news and bad news - the bad news is that there is some degree of immune runaway, that two doses could It doesn't work as well as it does against the previous variants, but in fact I think it's really good news that the third dose seems to give that really significant additional enhancement effect, "Leana Wen, an emergency room physician and professor at CNN, told CNN. George Washington University.