Pfizer ends COVID-19 trial with 95% efficacy, to seek emergency-use au… stocking 0 76 2020.11.18 22:45 https://youtu.be/elTUzo7ySNA + 4 화이자 "코로나 백신, 임상 최종 결과서 95% 예방효과" Pfizer and BioNTech announced their COVID-19 vaccine proved to be more than 95 percent effective ...