BEIJING, Feb. 22 (Xinhua) -- The number of COVID-19 vaccine doses administered on the Chinese mainland had reached over 3.09 billion by Monday, up about 5.6 million over the day before, data from the National Health Commission showed Tuesday. ■
BEIJING, Feb. 22 (Xinhua) -- The number of COVID-19 vaccine doses administered on the Chinese mainland had reached over 3.09 billion by Monday, up about 5.6 million over the day before, data from the National Health Commission showed Tuesday. ■
