A medical worker prepares a dose of COVID-19 vaccine at a community medical service center in Changsha, central China's Hunan Province, Nov. 15, 2021. (Xinhua/Chen Zeguo)
BEIJING, Nov. 26 (Xinhua) -- More than 2.464 billion COVID-19 vaccine doses had been administered on the Chinese mainland as of Thursday, data from the National Health Commission showed Friday. ■
