Pfizer's COVID-19 trial vaccine more than 90% effective: repo… stocking 0 87 2020.11.10 09:21 https://youtu.be/KCruPRrnAmo + 6 화이자 코로나 백신, 예방효과 90% 넘어…"마침내 빛이 보인다" We start with some good news, American biopharmaceutical company Pfizer,... which is ...