1. Department of Sexually Transmitted Diseases, Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong Province, People’s Republic of China
2. Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong Province, People’s Republic of China
3. Guangzhou Baiyun District Center for Disease Control and Prevention, Guangzhou, Guangdong Province, People’s Republic of China
4. Department of Dermatology, Tianjin Children Hospital, Tianjin, People’s Republic of China
5. Center of Clinical Laboratory, Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, People’s Republic of China
6. Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, People’s Republic of China
7. Department of Dermatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China