Rongbao Gao1, Cao Chen1, Feng Wang1, Hong Wang1, Tao Jiang2, Yeqin Sun3, Tongyu Fang4. 1. The Chinese Mobile Laboratory Team in Sierra Leone, Beijing 100071, China; National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention. 2. The Chinese Mobile Laboratory Team in Sierra Leone, Beijing 100071, China; State Key Laboratory of Pathogen and Biosecurity. 3. The Chinese Mobile Laboratory Team in Sierra Leone, Beijing 100071, China; Bereau of Medical Administration, Health Department of General Logistics Department, Chinese People's Liberation Army; Email: yeqinsun@163.com. 4. The Chinese Mobile Laboratory Team in Sierra Leone, Beijing 100071, China; State Key Laboratory of Pathogen and Biosecurity; Email: fangty@bmi.ac.cn.