I am currently an Associate Porfessor at School of Public Health and Preventive Medicine/Central Clinical School, Monash University Australia. I completed his Bachelor and Masters in Mathematics at the University of Sydney in 2002. I then pursued his PhD in Medicine in the University of New South Wales in microbiology. In 2006, I accepted a postdoctoral position offer at Humboldt University, Berlin and researched on topics of bioinformatics. In 2007, I became a visiting scholar at Bar-Ilan University in Israel for 3 months. In 2008, I enrolled in a Master of Public Health and completed it in 2009. In the same year I accepted a full-time research position in the Kirby Institute, UNSW. I conduct HIV epidemiological studies in China, Southeast Asia and other parts of the world. In 2004-2015, He has co-authored 85 peer-reviewed articles, published in high impact journals including Lancet ID, Lancet HIV, PNAS, CID, JAIDS and J. Virology. I have extensive international consulting experience for the World Bank and UNAIDS, to conduct national or world regional studies for HIV epidemic. I has co-authored 9 national reports for Vietnam, Indonesian, China and eight Eastern European/Central Asia countries. Since 2015, I have started my recent appointment at Monash University with a strong research focus on the epidemiology of sexually transmitted infections.