One dose of Pfizer or Moderna vaccines was 80% effective in preventing Covid in CDC study of health March 29 2021https://www.cnbc.com/2021/03/29/cdc-study-shows-single-dose-of-pfizer-or-moderna-covid-vaccines-was-80percent-effective.html
March 29 2021https://www.cnbc.com/2021/03/29/cdc-study-shows-single-dose-of-pfizer-or-moderna-covid-vaccines-was-80percent-effective.html
コメント