An update on Covid-19 and mask wearing
May 3, 2021 12:25PM EDT

CHICAGO, ILLINOIS – DECEMBER 18: COVID-19 vaccine is stored at -80 degrees celsius in the pharmacy at Roseland Community Hospital on December 18, 2020 in Chicago, Illinois. The hospital began distributing the COVID-19 vaccine to its workers yesterday. (Photo by Scott Olson/Getty Images)
Why do we still have to wear masks even if we are vaccinated? Should we be worried about another spike? Jon spoke with Infectious Disease Specialist Dr. Badie Alnemr.