China has started to prepare for the mass production of its Covid-19 vaccines and the drafting of distribution plans, said Vice-Premier Sun Chunlan on Wednesday.

Sun said the country had achieved major progress in the research and development of 14 vaccines, with five vaccines having entered phase-III clinical trials. She and State Councilor Wang Yong inspected the work on Covid-19 vaccine development and production in Beijing, Xinhua reported on Thursday.