Yinchuan launches 3rd round of nucleic acid test (4)

A medical worker takes a swab sample from a resident at a residential area in Xingqing District of Yinchuan, northwest China's Ningxia Hui Autonomous Region, Nov. 2, 2021. A third round of nucleic acid test has been launched from 8 a.m. Tuesday in Yinchuan. As of Sunday, a total of 33 confirmed COVID-19 cases have been reported in Ningxia, with 21 cases in Yinchuan, the capital city. (Xinhua/Feng Kaihua)