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Pfizer expects 24% of the U.S. population, or about 82 million people, to receive COVID-19 shots this year, CFO David Denton said at a conference on Monday, reiterating the vaccine maker's estimates from earlier this year.

The U.S. Food and Drug Administration has authorized updated COVID vaccines from Pfizer and its partner BioNTech, as well as from Moderna, as the country prepares to start a fall vaccination campaign. A third vaccine from Novavax is also under review.

During the last re-vaccination campaign, when most Americans had either already had the COVID virus or been previously vaccinated, only around 56.5 million people got the updated booster shots, according to federal data.

But last week, a Reuters/Ipos poll showed that about half of Americans are interested in getting an updated COVID vaccine. Head over to Medscape to read the full story.