A THIRD VACCINE DOSE? “I think it’s reasonably likely,” @BillGates tells @NorahODonnell.

He says it’s necessary “to make absolutely sure that as these variants hit the US, they’re not escaping vaccine protection.” https://t.co/lvnCeSuyeN pic.twitter.com/XSOII2tiRs

— CBS Evening News (@CBSEveningNews) February 17, 2021