As COVID-19 vaccination effort ramps up, doctor urges Americans to stay vigilant

A massive nationwide vaccination effort has begun in the U.S. as hospitals continue filling up with COVID-19 patients fighting for their lives. The nation has surpassed 300,00 deaths from the virus. Dr. Uché Blackstock joins CBSN to talk about the Pfizer and Moderna vaccines and what Americans need to do to fight the pandemic in the meantime. Source