1. BSL-3 Laboratory, Henan Center for Disease Control and Prevention, Institute of Infectious Disease Prevention and Control, Zhengzhou, People’s Republic of China
2. Sierra Leone-China Friendship Biological Safety Laboratory, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
3. State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
4. Center for Global Public Health, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
5. Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, People’s Republic of China
6. Ministry of Health and Sanitation, Freetown, Sierra Leone