José Siri is an epidemiologist focusing on infectious disease transmission, systems-analytic research and global urban health—he joined UNU-IIGH in February 2014 as a Research Fellow in Urban Health. An area of particular interest has been the role that changing patterns of rural-urban migration and mobility during urban transitions play in infectious disease risk. Dr. Siri works closely with the International Council for Science (ICSU) programme “Health and Wellbeing in the Changing Urban Environment – a Systems Analysis Approach,” which focuses on understanding urban health and fostering better decision-making in this context using systems approaches. He spent three years working at the International Institute for Applied Systems Analysis in Laxenburg, Austria. Dr. Siri is an associate editor for the Revista Panamericana de Salud Pública/Pan American Journal of Public Health (RPSP/PAJPH), the journal of the Pan American Health Organization (PAHO). He earned his BS in Ecology and Systematics from Cornell University, and his MPH in International Health and PhD in Epidemiology from the University of Michigan.