Health & Safety Coronavirus Vaccine: When To Expect It, And How It Would Work 11:48am April 25, 2020 by Joe Palca Health Global Health Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2020 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered Politics & Government Trump talks about national unity in RNC speech by Franco Ordoñez 250+ workers have died in preventable trench cave-ins over a decade, probe finds by Robert Benincasa 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate