Over 2.254 bln COVID-19 vaccine doses administered on Chinese mainland

A resident gets a booster shot of the COVID-19 vaccine at a community service center in Tianxin District of Changsha, central China's Hunan Province, Oct. 26, 2021. (Xinhua/Chen Zeguo)

BEIJING, Oct. 28 (Xinhua) -- More than 2.254 billion doses of COVID-19 vaccines had been administered on the Chinese mainland as of Wednesday, data from the National Health Commission showed Thursday.