October 15, 2021

On MSNBC’s Hallie Jackson Reports, Dr. Collins discusses COVID-19 vaccine boosters

Dr. Collins and MSNBC’s Hallie Jackson discuss COVID-19 vaccine boosters as well as the data on the mix and match trials.

https://www.msnbc.com/hallie-jackson/watch/-we-cant-speed-up-time-nih-director-o…