1. WHO Director-General's remarks at the media briefing on 2019-nCoV on 11 February 2020. (2020) World Health Organization. https://www.who.int/dg/speeches/detail/who-director-general-s-remarks-at-the-media-briefing-on-2019-ncov-on-11-february-2020. Accessed 18 Feb 2020
2. COVID-19. (2020) World Health Organization. https://www.ecdc.europa.eu/en/novel-coronavirus-china. Accessed 18 Feb 2020
3. Symptoms of Coronavirus Disease 2019. (2020) Centers for Disease Control and Prevention. https://www.cdc.gov/coronavirus/2019-ncov/about/symptoms.html. Accessed 16 Feb 2020
4. Guan W-J, Ni Z-Y, Hu Y, Liang W-H, Ou C-Q, He J-X, Liu L, Shan H, Lei C-L, Hui DS, Du B, Li L-J, Zeng G, Yuen K-Y, Chen R-C, Tang C-L, Wang T, Chen P-Y, Xiang J, Li S-Y, Wang J-L, Liang Z-J, Peng Y-X, Wei L, Liu Y, Hu Y-H, Peng P, Wang J-M, Liu J-Y, Chen Z, Li G, Zheng Z-J, Qiu S-Q, Luo J, Ye C-J, Zhu S-Y, Zhong N-S (2020) Clinical characteristics of 2019 novel coronavirus infection in China. medRxiv:2020.2002.2006.20020974. https://doi.org/10.1101/2020.02.06.20020974
5. Team TNCPERE (2020) The epidemiological characteristics of an outbreak of 2019 novel coronavirus diseases (COVID-19). China CDC Weekly 2020