U.S. CDC backs Pfizer booster shots for Americans aged 65 and older stocking 0 35 2021.09.24 22:55 https://youtu.be/8-8aqz5Jxww + 13 美 CDC, 노년·취약층에 코로나19 부스터샷 승인 The U.S. CDC is backing booster shots for the Pfizer and BioNTech COVID-19 vaccine for people aged 65 and ...