How soon could the FDA approve a COVID-19 vaccine?

How soon could the U.S. see its first coronavirus vaccine, and then how soon could that vaccine be distributed to the public? The FDA is planning to review and vote on the Pfizer-BioNTech vaccine on Thursday. Dr. James Hildreth, a member of the FDA’s vaccine advisory committee and the president and CEO of Meharry Medical College, joins Weekend TODAY to discuss the approval and rollout timeline.