1. World Health Organization. https://www.who.int/zh/news-room/q-a-detail/coronavirus-disease-covid-19
2. Chi-nese Center for Disease Control and Prevention.
https://m.chinacdc.cn/jkzt/crb/yl/hrb_11806/jszl/202301/t20230109_263283.html
3. World Health Organization. https://www.who.int/emergencies/diseases/novel-coronavirus-2019
4. Nowcasting and Forecasting the Potential Domestic and International Spread of the 2019-nCoV Outbreak Originating in Wuhan, China: A Modeling Study
5. Transmission Dynamics of 2019 Novel Coronavirus (2019-nCoV)