Prof Yik-Ying Teo, or commonly known as YY, is the second Dean of the Saw Swee Hock School of Public Health at the National University of Singapore. Trained as a mathematician at Imperial College and completed his MSc and DPhil at Oxford in statistical genetics, YY returned to Singapore in 2010 after working for four years as a Lecturer in Oxford and concurrently a researcher at the Wellcome Trust Centre for Human Genetics. Prior to his Deanship, he was the Founding Director for the Centre for Health Services and Policy Research, and also the Director for the Center for Infectious Disease Epidemiology and Research. He is presently a member on the Council of Scientists for the International Human Frontier Science Program, as well as a member governing board member of the Regional Centre for Tropical Medicine and Public Health Network for Southeast Asia.