With the U.S. about to approve emergency use for Pfizer’s vaccine, there have been some setbacks with others now being tested. Sanofi and GlaxoSmithKline said on Friday the launch of their vaccine will be delayed, and AstraZeneca announced confusing results for its potential vaccine. William Brangham spoke with Matthew Herper, a senior writer for STAT News, to learn more.
Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG
Find more from PBS NewsHour at https://www.pbs.org/newshour
Subscribe to our YouTube channel: https://bit.ly/2HfsCD6
PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts