Dr Nhan Tran holds a graduate degree in International Public Health and a PhD in Health Systems Research with an emphasis on road traffic injuries from the Johns Hopkins University School of Public Health. He started his career as an educator and then as a science advisor within the U.S. Department of Health & Human Services. Later, as a researcher at Johns Hopkins University, he co-founded the International Injury Research Unit (IIRU). Dr Tran joined WHO in 2011 and was previously the Manager of the Alliance for Health Policy and Systems Research. In October 2017 he assumed his current role as the Head of Safety and Mobility.