Pfizer, AstraZeneca vaccines highly effective for people 70 and over: … stocking 0 87 2021.03.02 14:45 https://youtu.be/EpHvo2Sm3nU + 13 영국 "화이자•아스트라제네카 백신 고령층에 큰 효과" New data from the UK shows the Pfizer and AstraZeneca COVID-19 vaccines are highly effective for people ...