Fewer cars were seen on the first day of Labor Day holiday in Wuhan, China, May 1, 2020. Some containment measures are still in place to prevent a second wave of coronavirus outbreak, resulting in fewer crowds compared to the previous years. /CFP

People are scanning QR codes to rates their risk of catching the coronavirus and taking their temperature before going into a shopping street, Wuhan, China, May 1, 2020. /CFP

A worker is disinfecting classroom tables in Wuhan, China, May 1, 2020. Some people are working nonstop during the holiday to ensure the grade three students in senior middle school can return to sterilized classrooms on May 6. /CFP

A bridge is lit up to pay tribute to workers on Labor Day, Wuhan, China, May 1, 2020. /CFP