COVID booster shot debate heats up ahead of FDA committee meeting
An FDA advisory committee will meet Friday to discuss and vote on COVID-19 vaccine booster shots. As Jonathan Vigliotti reports, there are conflicting studies on whether another shot is already needed. Then, Dr. Andre Campbell, a critical care physician and a professor at the University of California at San Francisco, joins CBSN's Lana Zak to explain what the science is telling us.