1. Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
2. These authors contributed equally to this work
3. Guangzhou the 8th People’s Hospital, Guangzhou, Guangdong, China
4. Baiyun Center for Disease Control and Prevention, Guangzhou, Guangdong, China
5. NanFang Hospital of Southern Medical University, Guangzhou, Guangdong, China
6. University of Hong Kong, Hong Kong Special Administrative Region, China