Qingdao has launched detailed requirement and measures to strengthen nucleic acid testing amid a resurgence of COVID-19 in multiple localities. Nucleic acid testing is a vital way to identify people who are infected and prevent the epidemic from spreading.

Local residents line up and are encouraged to practice social distancing while waiting for nucleic acid testing in the Central Business District of Shibei district, Qingdao. [Photo by Cui Chao/Guanhai News]

A medical worker takes a swab sample from a citizen for a nucleic acid test at a testing site in Jinjialing subdistrict, Laoshan district, Qingdao. [Photo by Liu Mingyuan/Guanhai News]

A resident receives a nucleic acid test at a community in Qingdao, Shandong province. [Photo by Liu Mingyuan/Guanhai News]

Medical workers collect samples for nucleic acid testing at a testing site in Shinan district, Qingdao. [Photo by Yao Xiangmin/Guanhai News]

Medical workers write their names on the protective clothing at a nucleic acid testing site in Qingdao. [Photo by Liu Mingyuan/Guanhai News]

A food driver undergoes nucleic acid testing at a community in Qingdao. [Photo by Liu Mingyuan/Guanhai News]

Medical workers register residents before they receive nucleic acid tests at a community in Qingdao, Shandong province. [Photo by Zang Qingsheng/Guanhai News]