Name: Vaccine makers vow to increase delivery of shots to the U.S.
Uploaded: Tue Feb 23 2021 21:54:55 GMT+0000 (UTC)
Duration: 3 min 25 s
Description: Vaccine makers say they aim to hit a target of 220 million shots by March 31st. Infectious disease specialist Dr. Mark Sawyer joins Katy Tur to discuss.

Feb. 23, 202103:25