Guo Chen (L) helps her husband Ji Xiaolei wear protective suit in a laboratory of Nantong center for disease control and prevention in Nantong, east China''s Jiangsu Province, Feb. 25, 2020. Guo Chen and Ji Xiaolei, who are the post-90s, work at a detection team of the microbiology laboratory in the Nantong center for disease control and prevention. Since the COVID-19 epidemic outbreak, they have worked hard with their colleagues to conduct novel coronavirus detections, with a highest daily detection samples reaching 550. (Photo by Xu Congjun/Xinhua)