KEY POINTS
  • President-elect Joe Biden plans to release more doses of the Covid vaccines once he takes office.
  • The Pfizer vaccine requires two shots 21 days apart and the Moderna vaccine requires two shots 28 days apart.
  • Operation Warp Speed has contended that it's necessary to withhold some available doses of the vaccines to ensure everyone who got their first dose will get their booster shot on schedule.
U.S. President-elect Joe Biden speaks as he announces his Justice Department nominees at his transition headquarters in Wilmington, Delaware, U.S., January 7, 2020.

President-elect Joe Biden plans to release more doses of the Covid vaccines once he takes office, breaking from the Trump administration's policy of holding reserve doses to ensure there's enough for second shots and to account for manufacturing issues.

The Pfizer vaccine requires two shots 21 days apart and the Moderna vaccine requires two shots 28 days apart. Officials from President Donald Trump's vaccine program, Operation Warp Speed, have withheld half of the available doses to ensure they can administer second shots in a timely fashion.