Jun-Ling Sun1, Sheng Zhou1, Qi-Bin Geng1,2, Qian Zhang1, Zi-Ke Zhang1,3, Can-Jun Zheng1, Wen-Biao Hu4, Archie C A Clements5, Sheng-Jie Lai1,6, Zhong-Jie Li7. 1. Division of Infectious Diseases, Key Laboratory of Surveillance and Early-warning on Infectious Disease, Chinese Center for Disease Control and Prevention, 155 Changbai Road, Changping District, Beijing, 102206, China. 2. State Key Laboratory of Virology and College of Life Sciences, Wuhan University, Wuhan, 430072, China. 3. Center of Clinical Laboratory, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. 4. School of Public Health and Social Work, Queensland University of Technology, Brisbane, Australia. 5. Research School of Population Health, College of Medicine, Biology and Environment, The Australian National University, Canberra, Australia. 6. Department of Geography and Environment, University of Southampton, Southampton, SO17 1BJ, UK. 7. Division of Infectious Diseases, Key Laboratory of Surveillance and Early-warning on Infectious Disease, Chinese Center for Disease Control and Prevention, 155 Changbai Road, Changping District, Beijing, 102206, China. lizhongjiecdc@163.com.