Dr Seth Berkley discusses how to harness the power of research to expedite the development of vaccines appropriate for developing countries and improve access to them.Dr Berkley explains how the GAVI Alliance’s public-private partnership model brings together donors, developing countries, industry, civil society and academia to solve the challenges of reaching every child with vaccines no matter where they are born.GAVI leverages expertise across a variety of sectors, including innovative financing for development, supply chain management, the development of mobile phone platforms for the collection of epidemiological data, mathematical modelling of infectious disease and health economics and policy.