It is "entirely conceivable" that we may need boosters again, Dr. Anthony Fauci tells @MarthaRaddatz.

"Before we make that decision about yet again another boost, we want to determine clearly what the durability of protection is of that regular boost." https://t.co/V1Do3N3U8E pic.twitter.com/31a57WdyN3

— This Week (@ThisWeekABC) January 23, 2022