Medical worker Feng Limin delivers materials through a channel at the Diagnostics Virology and Transformation Center of the Guangzhou KingMed Diagnostics Group Co., Ltd. in Guangzhou, south China's Guangdong Province, Feb. 18, 2020. To minimize the impact of novel coronavirus outbreak on the production, Chinese firms across the country cautiously resumed work after comprehensive measures taken to prevent and control the epidemic. Some entrepreneurs opted to nucleic acid tests to make sure their employees are safe. Thus the demand for the tests soars and the testing efficiency becomes critical. Feng Limin, a technical director of the Diagnostics Virology and Transformation Center and a PCR inspector at the Guangzhou KingMed Diagnostics Group Co., Ltd., is one of those "hunting" the virus in the lab. Clad in protective suit, Feng works at least eight consecutive hours each day at the lab and his team can complete about 900 samples of the novel coronavirus nucleic acid detection within 8 hours. When the epidemic came, Feng was in his Spring Festival holiday and volunteered to return to his duty to provide lab test services. "I was studying at high school during the SARS outbreak and then went to medical university. And now it is time for me to shoulder my responsibility," said Feng. (Xinhua/Liu Dawei)