The Global Burden of Disease 2023 study by Vaccine Coverage Collaborators analyzes routine childhood vaccination coverage in 204 countries and territories from 1980 to 2023. The number of children without a single vaccination (so-called "zero-dose" children) fell by 74.9% globally between 1980 and 2019, but increased during the pandemic and in 2023 there were 15.7 million. More than half of these children live in eight countries: Nigeria, India, the Democratic Republic of Congo, Ethiopia, Somalia, Sudan, Indonesia and Brazil. By 2030, WHO's goal is to halve the number of zero-dose children compared to 2019 and achieve 90% coverage of major vaccines, which requires increasing coverage in many countries, particularly in sub-Saharan Africa and South Asia. In 2024, 89% of children globally were vaccinated with at least the first dose of DTP, but 14.3 million children were not vaccinated at all. In 47 countries, vaccination coverage did not improve or even worsened. To achieve the goals, it is necessary to increase investment and improve the availability of vaccination in conflict and disadvantaged areas.