1. Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, People’s Republic of China
2. Fourth People’s Hospital of Nanning, Nanning, People’s Republic of China
3. Rollins School of Public Health, Emory University, Atlanta, GA, USA
4. Guangxi Collaborative Innovation Center for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, People’s Republic of China
5. Division of Infectious Diseases, Duke University School of Medicine, Durham, NC, USA
6. Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam