-- Equity-driven sustainable development -- Gobal context: childhood immunization -- Achievements during the Millennium Development Goal (MDG) period (2000–2015) -- Looking ahead to the era of the SDGs (2015–2030) -- Methods: Data, Analysis, Reporting -- State of inequality between countries -- State of inequality within countries -- Inequality by household economic status -- Inequality by mother’s education -- Inequality by place of residence -- Inequality by sex -- Inequality in priority countries : Afghanistan, Benin, Cambodia, Cameroon, Central African Republic, Comoros, Congo Côte d’Ivoire, Democratic Republic of the Congo, Ethiopia, Guinea, Indonesia, Iraq, Lao People’s Democratic Republic, Liberia, Mali. Mozambique, Niger, Nigeria, Pakistan, South Sudan, Sudan, Yemen -- Understanding and improving the state of inequality in childhood immunization -- Strengthening health information systems.