A resident receives nucleic acid testing for COVID-19 at Mengmao Village of Mengmao Township, Ruili City, southwest China's Yunnan Province, March 31, 2021. The city of Ruili on Wednesday launched a city-wide nucleic acid testing for COVID-19 after new cases were reported. Ruili found one positive case during regular COVID-19 testing among high-risk groups on March 29, and another eight positive cases in the following tracing. After further testing, six were diagnosed as confirmed cases and three as asymptomatic, said the provincial health committee. (Xinhua/Chen Xinbo)
