Mads Melbye is a physician and scientist with a deep interest in population health data science. He holds a position as senior advisor to the National Institute of Public Health in Norway and as professor at the Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology. He is also affiliated with Department of Genetics, Stanford University and Department of Clinical Medicine, University of Copenhagen. He was involved in uncovering the cause and spread of the AIDS epidemic and has major interests in infectious disease and vaccine research, in research on the etiology of cancer, in genetic and molecular epidemiology, and in perinatal epidemiology. He founded and for many years headed the Department of Epidemiology at Statens Serum Institute in Denmark, founded the Danish National Biobank and co-founded the Danish National Children’s study. Previous academic positions as e.g. senior investigator at National Cancer Institute, NIH, USA, Danish Research Council Professor, NORFA professor, and Foreign Adjunct Professor at Karolinska Institute in Sweden. He has written more than 600 publications (H-index: 100 (Web of Science), 126 (Google Scholar)).