CBS News @CBSNews
Novavax is expected to request permission to distribute its COVID vaccine in the coming months, saying it's 90% effective. This comes as scientists warn about the Delta COVID variant that could become the dominant strain in the U.S. @SkylerHenry reports https://t.co/Nj065CIsxp https://t.co/0l6pNFSc6W — PolitiTweet.org