Medical staff from Xiangtan Central Hospital vaccinate teachers and students with COVID-19 vaccines at a temporary inoculation site of Hunan University of Science and Technology in Xiangtan, central China's Hunan Province, April 1, 2021. (File photo: Xinhua)

BEIJING, April 8 (Xinhua) -- More than 149 million doses of COVID-19 vaccines had been administered across China as of Wednesday, the National Health Commission said Thursday.