The FDA has regulatory processes in place to facilitate the development of COVID-19 vaccines that meet the FDA's rigorous scientific standards.
The FDA posts an updated letter of authorization, health care provider fact sheet and frequently asked questions regarding the number of Pfizer-BioNTech doses in a vial, updated the Device Shortage List, and provides a testing update.
https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-december-28-2020
In this 30-minute video discussion, FDA Commissioner Dr. Stephen Hahn and Center for Biologics Evaluation and Research (CBER) Director Dr. Peter Marks talk with WebMD about what we know, what we don't know, and what we might learn in the future about COVID-19 vaccines.
https://www.webmd.com/coronavirus-in-context/video/whyte-topol-hahn-marks