A medical worker prepares a dose of COVID-19 vaccine at a vaccination site in Beijing, Dec. 9, 2021. (Xinhua/Zhang Yuwei)
BEIJING, Dec. 17 (Xinhua) -- More than 2.65 billion COVID-19 vaccine doses had been administered on the Chinese mainland as of Thursday, data from the National Health Commission showed Friday.
原文地址：http://en.people.cn/n3/2021/1217/c90000-9934445.html