Hellow guys, Welcome to my website, and you are watching FDA Authorizes Pfizer & Moderna Bivalent Booster | What does it mean? | A doctor explains. and this vIdeo is uploaded by Vinay Prasad MD MPH at 2022-08-31T17:11:24-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.