China's Ruili launches second citywide nucleic acid testing

Residents wait in line to receive nucleic acid testing for COVID-19 at Youyi community, Ruili City, southwest China's Yunnan Province, April 6, 2021. Ruili City in southwest China's Yunnan Province on Tuesday launched the second round of nucleic acid testing that includes all residents of the city proper. (Xinhua/Chen Xinbo)