Heard on Morning Edition
The recommendation comes as BA.2, an even more contagious version of the omicron variant, continues to spread in the U.S., and concern mounts that it could fuel another surge. BA.2 is now the dominant strain in the U.S., making up 54.9% of cases, according to the CDC.
Podcast Listen https://www.npr.org/sections/health-shots/2022/03/27/1089072803/the-fda-is-expected-to-authorize-2nd-boosters-for-people-50-and-up