Did China test an entire city in 10 days?published at 04:13 British Summer Time 27 May 2020
Reality Check
China has been carrying out an ambitious plan to test everyone in Wuhan, the city where the Covid-19 pandemic began, following the emergence of a cluster of new infections.
Health officials in Wuhan say they carried out 1.47m tests on a single day, 22 May, external - a huge increase from the 100,000 a day prior to this testing campaign starting.
In total, according to the Hubei health commission website, nine million test samples had been taken by 24 May - 10 days after the campaign started.