Why the U.S. vaccine rollout has been slower than expected
Clip: 02/23/2021 | 5m 33s | Video has closed captioning.
So far, 65 million Americans have received at least one shot of either the Pfizer or Moderna vaccines. As a country, the U.S. has recently picked up the pace of vaccinations, but there are concerns over supply and demand, which was the subject of a congressional hearing on Tuesday. Miles O'Brien joins John Yang to discuss.
Aired: 02/23/21
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