Published on in Vol 8, No 10 (2020): October
                                    Preprints (earlier versions) of this paper are
                                    available at
                                    https://preprints.jmir.org/preprint/16901, first published
                                    .
                                

1 Department of Nosocomial Infection Management, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
2 School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
*these authors contributed equally
