Dr Hao is a visiting senior research fellow at Saw Swee Hock School of Public Health, National University of Singapore, and a Postdoctoral fellow in Molecular Epidemiology at Oxford University Clinical Research Unit, Vietnam. He is a trained microbiologist fascinated at how microbes evolve and interact with human. His research seeks to combine high-resolution genomic data and clinical studies to answer relevant public health questions on infectious diseases epidemiology and evolution, and to translate understandings on bacterial evolution and ecology into better approaches in healthcare.