PBS News Hour

The risks and rewards of expedited vaccine development

The race to develop vaccine candidates to prevent COVID-19 represents an unprecedented national and global effort. President Trump and some public health experts say encouraging early results from Pfizer and Moderna suggest the approach is working. But there are also questions about the risks of ramping up vaccine research and development at this scale and on this timeline. Miles O’Brien reports.

The risks and rewards of expedited vaccine development

6m 37s

WETA Passport

Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.