Under real world conditions, the Pfizer and Moderna Covid-19 vaccines provide highly effective protection, according to a new report from the US Centers for Disease Control and Prevention.
원문출처 : https://www.cnn.com/2021/03/29/health/pfizer-and-moderna-covid-19-vaccines-work-wellness/index.html
원문출처 : https://www.cnn.com/2021/03/29/health/pfizer-and-moderna-covid-19-vaccines-work-wellness/index.html