Vanesa Edelvais Castellano, MD, is a pediatrician specializing in vaccinology, epidemiology, and real-world evidence. She graduated from the University of Buenos Aires and completed a Master's program in Clinical and Health Effectiveness, focused on Health Technology Assessment and Economic Evaluation. She completed advanced international training in vaccinology, including the ADVAC Course (Mérieux Foundation – University of Geneva) and the PEIVAP Program (SLIPE – University of Florida). She is the Medical Director of the Scientific Department at Vacunar Foundation, Co-Director of the Diploma in Vaccinology, a joint academic program of Vacunar Foundation and CEMIC University Institute, and a staff physician in the Epidemiology Division at Ricardo Gutiérrez Children's Hospital, where she coordinates immunization activities in Buenos Aires, Argentina. She is an active member of the Argentine Society of Pediatrics and the Latin American Society of Pediatric Infectious Diseases (SLIPE), and serves on the Childhood and Adolescence Observatory of the Argentine Society of Pediatrics. Her work focuses on vaccine safety, real-world effectiveness, pharmacovigilance, vaccine confidence, and implementation research. She has participated in numerous national and international collaborative research projects and has led multiple investigator-initiated studies and competitive research grants. She has contributed to the development of national immunization guidelines and educational programs