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The number of Americans getting coronavirus vaccine boosters is outpacing the number of those getting their first vaccine shots, according to data from the Centers for Disease Control and Prevention.

For the week ending Tuesday, a daily average of roughly 340,000 people received booster shots. Meanwhile, an average of 157,605 people each day received their first vaccine shot during the comparable period of time, government data shows.

The numbers represent the vaccination gap among Americans. As additional vaccines are authorized by federal regulators as boosters, more people who had already been immunized will get further protection. At the same time, a large number of people nationwide remain unvaccinated, underscoring the challenge of improving protection against the coronavirus for the general population.

About 66 percent of the nation’s population has received at least one coronavirus vaccine dose, according to data tracked by The Washington Post. A growing number of industrialized countries have surpassed the United States on this count, even though many had later starts in their vaccine rollouts.

Here’s what to know

  • More than 70 million Americans are now eligible for coronavirus booster shots and 50 million more will be eligible to receive booster shots in the coming months, White House Coronavirus Response Coordinator Jeff Zients said Friday.
  • Pfizer and BioNTech reported their coronavirus vaccine is 91 percent effective in children 5 to 11 years old in documents posted Friday ahead of a Tuesday meeting where experts are scheduled to debate whether the shots are safe and effective.
  • Tens of millions of Americans can sign up to get Moderna and Johnson & Johnson booster shots beginning Friday, after the nation’s top public health official endorsed recommendations from expert advisers on booster doses and for the mixing and matching of coronavirus vaccines for boosters.
  • The CDC told everyone to stay home last year, but this season is different.