A health worker takes a swab sample from a citizen for COVID-19 test in Qingdao, east China's Shandong Province, Oct. 12, 2020. The city of Qingdao in east China's Shandong Province has activated a plan to conduct a city-wide nucleic acid testing for COVID-19 after new cases were reported. Qingdao has reported six new confirmed cases and six new asymptomatic cases of COVID-19 since fresh cases emerged in the city over the weekend, the municipal health commission said. (Xinhua/Li Ziheng)
