We need a vaccine to vanquish COVID-19. Here's how scientists are trying to find it

Published: April 21, 2020, 10:25 p.m.

Science correspondent Miles O'Brien has spent the past few weeks in Seattle, reporting on the COVID-19 pandemic and producing a film for FRONTLINE about how things unfolded in the city where the disease made its U.S. debut. He joins William Brangham to discuss the global push to find an effective vaccine and therapeutic treatments, plus shares a preview of the FRONTLINE special on the pandemic.