A medical worker administers a dose of COVID-19 vaccine for a resident at a vaccination site in Haikou, south China's Hainan Province, Aug. 4, 2021. (Xinhua/Yang Guanyu)
BEIJING, Oct. 5 (Xinhua) -- Over 2.214 billion COVID-19 vaccine doses had been administered on the Chinese mainland as of Monday, data from the National Health Commission showed Tuesday. ■
