UPDATE JANUARY 21, 2022:
NEW YORK (AP) — Three new U.S. studies offer more evidence that the COVID-19 vaccines are standing up to the omicron variant, at least among people who have gotten booster shots. The Centers for Disease Control and Prevention released the studies Friday (Jan. 21, 2022). The results echo previous research — including studies in Germany, South Africa, and the United Kingdom. They found available vaccines are less effective against omicron than they were against earlier versions of the coronavirus. One of the papers found that two doses of the Pfizer and Moderna vaccines offered no significant protection against omicron. Several studies have concluded a booster can significantly improve protection.
JANUARY 19, 2022:
NEW YORK (AP) — A new study that compares coronavirus protection from prior infection and vaccination concludes getting the shots is still the safest way to prevent COVID-19. The study examined infections in New York and California last summer and fall. They found people who were both vaccinated and had survived a prior bout of COVID-19 had the most protection. But unvaccinated people with a prior infection were a very close second. By fall, when the more contagious delta variant had taken over but boosters weren’t yet widespread, those people had a lower case rate than vaccinated people who had no past infection. The Centers for Disease Control and Prevention released the study Wednesday (Jan. 19, 2022).
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