Dr. Ruth Gil Prieto is professor of Preventive Medicine and Public Health at Rey Juan Carlos University in Madrid. Trained as a Biochemist, did her PhD in Epidemiology and Public Health Because of her interest in Humanitarian Medicine and Development, she quickly decided to turn her attention to Infectious Disease Epidemiology, in particular vaccines. After serving as an adjunct professor she completed research stays in the pharmaceutical industry closely following the clinical development of several vaccines. In 2010 she obtained her Tenure at the University Rey Juan Carlos (URJC) Madrid where she teaches epidemiology and serves as the director of International Cooperation and Volunteering Program. She was also a Visiting Associate Professor at the Department of Population Medicine, Harvard Medical School, in Boston, where her research focuses on vaccine safety.