Covid updates: Operation Warp Speed chief resigns; U.S. lowers age for vaccine eligibility

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The U.S. vaccine rollout is beginning to pick up steam. Nearly 9 million doses have been administered across the country as of Monday morning, according to CDC data. That's an increase of more than 2 million from the previous update. Though the pace appears to be improving, administered vaccine doses still represent only about a third of total doses distributed to states so far.

Here are the biggest developments Tuesday:

The U.S. is recording at least 248,650 new Covid-19 cases and at least 3,223 virus-related deaths each day, based on a seven-day average calculated by CNBC using Johns Hopkins University data.

The following data was compiled by Johns Hopkins University:

  • Global cases: More than 91.04 million 
  • Global deaths: At least 1.94 million
  • U.S. cases: More than 22.62 million
  • U.S. deaths: At least 376,695