Staff members work at the packing line of the Sinopharm vaccines in Beijing, capital of China, May 31, 2021. (Xinhua)
BEIJING, July 8 (Xinhua) -- Twenty-two COVID-19 vaccines have been approved to enter clinical trials in China, a health official said Thursday.
To date, four COVID-19 vaccines have been granted conditional marketing approval and three have been authorized for emergency use within the country, said Yuan Lin, an official with the National Medical Products Administration, at a press conference in Beijing.
A single purchase
