Dr Jinkou (Button) Zhao is a senior specialist for evaluation and impact at the Global Fund. He has extensive experiences in the field of nutrition, infectious diseases, and chronic diseases as a range of professional roles from a junior epidemiologist to Department Director at Jiangsu provincial CDC, to a Chief for Strategic Information at U.S. CDC, a senior advisor at Bill & Melinda Gates Foundation and a senior technical expert at the Global Fund over the past 36 years. Dr Zhao was trained as a physician, with a MSc in epidemiology and biostatistics, and a PhD in epidemiology. He teaches epidemiology at Nanjing Medical University, Wageningen University in the Netherland, University of Geneva in Switzerland and Oxford University in UK. He supervised more than 20 Masters or PhD students and published more than 260 articles including more than 100 on peer-reviewed journals.