Esther Dada, MPH, epidemiologist in the Injury Prevention Division at the Army Public Health Center, provides technical expertise in epidemiologic surveillance, monitoring, and analysis of injuries and other health problems in the military population to inform Army and Department of Defense prevention program and policy planning. Ms. Dada has represented the Army Pubic Health Center on Department of Defense safety workgroups and trained military public health professionals in basic principles of epidemiology. Her work in public health at the federal and state levels has spanned a range of topics, including the surveillance and epidemiology of injury, diabetes, cardiovascular disease, mental disorders, and obesity; and health policy issues involving utilization, costs, and access to health services.