Name: Expert: ‘I've never seen a more rigorous chase for any vaccine’
Uploaded: Wed Apr 22 2020 03:28:45 GMT+0000 (UTC)
Duration: 4 min 58 s
Description: Jon Cohen, a staff writer for Science Magazine, tells Lawrence O'Donnell the race to develop a COVID-19 vaccine is "more rigorous" than any chase for a vaccine he has seen in his more than 30 years covering infectious diseases and vaccines. Cohen says he's hopeful because a COVID-19 vaccine does not seem "that tough of a scientific nut to crack.”

April 22, 202004:58