Liu Shihao takes off his protective suit after he collects swab samples for nucleic acid testing at a community in Yangzhou, east China's Jiangsu Province, Aug. 20, 2021. Liu Shihao, born in 1995, is a medical worker of Guanyun People's Hospital in Lianyungang City, Jiangsu Province. Liu and his colleagues joined a medical assistance team and came to Yangzhou during the recent COVID-19 resurgence. They stuck to their posts to help with mass nucleic acid testing in the city. (Xinhua/Li Bo)
