medRxiv preprint doi: https://doi.org/10.1101/2020.02.04.20020479; this version posted March 9, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC 4.0 International license . Assessing spread risk of Wuhan novel coronavirus within and beyond China, January-April 2020: a travel network-based modelling study Shengjie Lai1,2*, Isaac I. Bogoch3, Nick W Ruktanonchai1, Alexander Watts4,5, Xin Lu6,7, Weizhong Yang8, Hongjie Yu2, Kamran Khan3,4,5, Andrew J Tatem1* 1. WorldPop, School of Geography and Environmental Science, University of Southampton, UK 2. School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China 3. Department of Medicine, University of Toronto, Toronto, Canada 4. Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada 5. Bluedot, Toronto, Canada 6. College of Systems Engineering, National University of Defense Technology, Changsha, China 7. Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden 8. Chinese Academy of Medical Sciences & Peking Union Medical College. Correspondence: Shengjie Lai (
[email protected]); Andrew J Tatem (
[email protected]) Running head: 2019-nCoV spread within and beyond China 1 NOTE: This preprint reports new research that has not been certified by peer review and should not be used to guide clinical practice. medRxiv preprint doi: https://doi.org/10.1101/2020.02.04.20020479; this version posted March 9, 2020.