Pfizer-BioNTech's Covid-19 vaccine appears to reduce symptomatic coronavirus infections by more than 90% in the real world, Israeli researchers said Sunday.
원문출처 : https://www.cnn.com/2021/02/15/health/pfizer-biontech-covid-vaccine-reduces-infections-israel-study-intl/index.html
원문출처 : https://www.cnn.com/2021/02/15/health/pfizer-biontech-covid-vaccine-reduces-infections-israel-study-intl/index.html