1. Department of Epidemiology and Biostatistics, School of Public Health, Nantong University, Jiangsu, People’s Republic of China, Melbourne, Australia
2. School of Public Health and Preventive Medicine, Faculty of Medicine, Monash University, Melbourne, Australia
3. Melbourne Sexual Health Centre, Alfred Health, Melbourne, Australia
4. Central Clinical School, Faculty of Medicine, Monash University, Melbourne, Australia
5. Institute for Global Health and Infectious Diseases, University of North Carolina at Chapel Hill, North Carolina
6. University of North Carolina Project–China
7. SESH (Social Entrepreneurship to Spur Health) Global, Guangzhou, Guangdong, People’s Republic of China, London, United Kingdom
8. Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
9. Dermatology Hospital, Southern Medical University, Guangzhou, Guangdong
10. Guangdong Center for Skin Diseases and STI Control, Guangzhou, Guangdong
11. Stanley Ho Centre for Emerging Infectious Diseases, Chinese University of Hong Kong, Hong Kong
12. Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, People’s Republic of China