1. World Health Organization: SARS-CoV-2 Variants. (2020). https://www.who.int/emergencies/disease-outbreak-news/item/2020-DON305. Accessed 6 Jun 2021.
2. World Health Organization: WHO Coronavirus (COVID-19) Dashboard. (2021). https://covid19.who.int/. Accessed 6 Jun 2021.
3. National Health Commission of the People’s Republic of China: Information Disclosure. (2021). http://www.nhc.gov.cn/xcs/yqtb/202106/c8576813374d4238bf7ec7f29ce75bbe.shtml. Accessed 6 Jun 2021.
4. Zhang L, Liu YH. Potential interventions for novel coronavirus in China: a systematic review. J Med Virol. 2020;92(5):479–90. https://doi.org/10.1002/jmv.25707.
5. National Health Commission of the People’s Republic of China: News (2021). http://www.gov.cn/xinwen/2021-01/10/content_5578578.htm. Accessed 26 Aug 2021.