Jan C. Semenza the head of the Scientific Assessment Section at the European Centre for Disease Prevention and Control (ECDC) in Stockholm. Currently he is working at ECDC on environmental and climatic drivers of infectious disease transmission. He has analysed infectious disease threat events in Europe that were detected through epidemic intelligence activities at ECDC. He has identified, disaggregated and prioritized the underlying drivers of these infectious disease threat events in order to enhance our understanding of the process underlying increases in emerging infectious diseases and guide public health interventions. Insights from this analysis may accelerate outbreak detection and response and inform emergency control measures. Previously, he had worked internationally on a number of infectious disease issues in Uzbekistan, Sudan, Egypt, Denmark, Brazil, and Haiti. He was also a faculty member at UC Berkeley, UC Irvine, Oregon Health and Science University, and at Portland State University where he taught in the Oregon Master's Program of Public Health. He was an Epidemic Intelligence Service Officer at the U.S. Centers for Disease Control and Prevention (CDC) in 1995.