"China currently has 85,578 virus cases and the death toll stands at 4,634. Earlier this year, China completed a mass testing programme in Wuhan saying 11 million people had been tested in 10 days. However, the BBC's Reality Check later estimated that the figure was closer to 9 million over 10 days - still a significant number of people. Hundreds of testing centres were opened, with thousands of testing staff involved."

"The Chinese city of Qingdao is testing its entire population of nine million people for Covid-19 over a period of five days. The mass testing comes after a dozen cases were found linked back to a hospital treating coronavirus patients arriving from overseas. The country has largely brought the virus under control."