[1] Tan WJ, Zhao X, Ma XJ, Wang WL, Niu PH, Xu WB, et al. A novel coronavirus genome identified in a cluster of pneumonia cases — Wuhan, China 2019−2020. China CDC Wkly 2020;2(4):61 − 2. http://dx.doi.org/10.46234/ccdcw2020.017CrossRef
[2] Zhu N, Zhang D, Wang W, Li X, Yang B, Song J, et al. A novel coronavirus from patients with pneumonia in China,2019. N Engl J Med 2020;382(8):727 − 33. http://dx.doi.org/10.1056/NEJMoa2001017CrossRef
[3] Rambaut A, Holmes EC, O’Toole Á, Hill V, McCrone JT, Ruis C, et al. A dynamic nomenclature proposal for SARS-CoV-2 lineages to assistgenomic epidemiology. Nat Microbiol 2020;5(11):1403 − 7. http://dx.doi.org/10.1038/s41564-020-0770-5CrossRef
[4] Tian XL, Song Y, Nie K, Wang GD, Wang HQ, Xu WB, et al. The two reemergent confirmed COVID-19 cases — Manzhouli City, Inner Mongolia Autonomous Region, China, November 20, 2020. China CDC Wkly 2020;2(51):983 − 4. http://dx.doi.org/10.46234/ccdcw2020.258CrossRef
[5] Fang FH, Song Y, Hao LP, Nie K, Sun XD. A case of COVID-19 detected in a cargo worker at Pudong Airport — Shanghai Municipality, China, November 8, 2020. China CDC Wkly 2020;2(47):910 − 1. http://dx.doi.org/10.46234/ccdcw2020.246CrossRef
[6] Chen HY, Huang XY, Zhao X, Song Y, Hao P, Jiang H, et al. The first case of new variant COVID-19 originating in the United Kingdom detected in a returning student — Shanghai Municipality, China, December 14, 2020. China CDC Wkly 2021;3(1):1 − 3. http://dx.doi.org/10.46234/ccdcw2020.270CrossRef