1. World Health Organization. Weekly epidemiological update on COVID-19-4 January 2023.2023. https://www.who.int/publications/m/item/weekly-epidemiological-update-on-covid-19---4-january-2023. Accessed 12 Jan 2023.
2. Chinese Center for Disease Control and Prevention. A few things you need to know about the BQ.1. 2022. https://www.chinacdc.cn/yyrdgz/202212/t20221213_263008.html. Accessed 5 Jan 2023.
3. Ma XW. Report of the State Council on the promotion of Children′s health. 2022. http://www.npc.gov.cn/npc/c30834/202206/3442472183a94b29a3edd6a1cf978aa1.shtml. Accessed 6 Jan 2023.
4. National Health Commission of the People’s Republic of China. Diagnosis and treatment plan of SARS-CoV-2 Infection (Trial Version 10). 2023. http://www.nhc.gov.cn/ylyjs/pqt/202301/32de5b2ff9bf4eaa88e75bdf7223a65a/files/02ec13aadff048ffae227593a6363ee8.pdf. Accessed 6 Jan 2023.
5. Jiang RM, Xie ZD, Jiang Y, Lu XX, Jin RM, Zheng YJ, et al. Diagnosis, treatment and prevention of severe acute respiratory syndrome coronavirus 2 infection in children: experts’ consensus statement (fourth edition). Chin J Appl Clin Pediatr. 2022;37:1053–65 (In Chinese).