About 11,000 delivery people are sending life supplies and online orders to Shanghai residents every day in the midst of the ongoing lockdown, according to the city's commerce commission.Every day, beginning from today, courier personnel who are primarily from local meal delivery and e-commerce platforms are subjected to a polymerase chain reaction (PCR) test and antigen self-testing.To begin working, they must have a negative report and wear gloves, a facial shield and a mask, according to Liu Min, the commission's deputy director.