The Chinese city of Shanghai carried out one of the world's strictest lockdowns to stop the spread of the Covid-19, from March to June 2022. The city of 22.5 million people essentially shut down as residents were ordered not to leave their residential compounds and were subject to daily Covid-19 PCR tests, all as the city tried to achieve the national government's dynamic zero-Covid strategy. People who tested positive were taken to government-run quarantine facilities and as the lockdown went…