Residents wait Monday to take nucleic acid tests on a school playground in Dalian, Northeast China’s Liaoning province.

A medical worker wears a chemical cold press on her head to stave off heat stroke.

A resident takes a nucleic acid test. Dalian has reported 44 coronavirus cases since Thursday, the day that the city reported its first case in 111 days.

Residents wait to take nucleic acid tests.

A medical staff member on Friday disinfects the clothing of a worker who will help do nucleic acid testing.

A medical worker registers the personal information about resident going to take a nucleic acid test Sunday.