Dr. Ignacio Esteban is a pediatrician and public health professional trained in pulmonology and infectious disease epidemiology, with expertise in vaccine policy, new vaccine introductions, and a focus on equitable vaccine access. He has conducted research across low- and middle-income countries (LMICs), including serving as Research Associate and Head of Pharmacovigilance at the Infant Foundation, and in roles at the Johns Hopkins International Vaccine Access Center (IVAC). He is currently Senior Policy Manager at Gavi, the Vaccine Alliance, where he leads analyses and efforts on new vaccine introductions, including RSV, GBS, tuberculosis, and dengue, to support and promote the introduction of these vaccines in low-income countries. He also serves as Associate Professor of Public Health at Austral University.