[1] Lu RJ, Zhao X, Li J, Niu PH, Yang B, Wu HL, et al. Genomic characterisation and epidemiology of 2019 novel coronavirus: implications for virus origins and receptor binding. Lancet 2020;395(10224):565 − 74. http://dx.doi.org/10.1016/S0140-6736(20)30251-8CrossRef
[2] Tang XL, Wu CC, Li X, Song YH, Yao XM, Wu XK, et al. On the origin and continuing evolution of SARS-CoV-2. Nat Sci Rev 2020;7(6):1012 − 23. http://dx.doi.org/10.1093/nsr/nwaa036CrossRef
[3] Daniloski Z, Guo XY, Sanjana NE. The D614G mutation in SARS-CoV-2 Spike increases transduction of multiple human cell types. bioRxiv 2020. http://dx.doi.org/10.1101/2020.06.14.151357CrossRef
[4] Xu J, Zhang Y, Zhao X, Wang DY, Dai WP, Jiao GY, et al. A Reemergent Case of COVID-19 — Harbin City, Heilongjiang Province, China, April 9, 2020. China CDC Weekly, 2020, 2(25):460 − 2. http://weekly.chinacdc.cn/en/article/doi/10.46234/ccdcw2020.127.http://weekly.chinacdc.cn/en/article/doi/10.46234/ccdcw2020.127
[5] Chen C, Zhao X, Wang DY, Li J, Wang A, Wu DL, et al. The Initial Case of COVID-19 — Shulan City, Jilin Province, China, May 8, 2020. China CDC Weekly, 2020, 2(25):458 − 9. http://weekly.chinacdc.cn/en/article/doi/10.46234/ccdcw2020.115.http://weekly.chinacdc.cn/en/article/doi/10.46234/ccdcw2020.115