23 August 2021. The National Health Commission said that the Chinese mainland on Sunday reported 21 imported COVID-19 cases but no new locally transmitted cases. Imported cases were reported in Guangdong, Shanghai, Tianjin, Yunnan, Beijing, Shanxi, Zhejiang, Henan and Sichuan.https://www.chinadaily.com.cn/a/202108/23/WS612307c4a310efa1bd66a71c.html