In a world where conflict and crises seem to dominate the headlines, it's easy to overlook the quiet victories that are being won in the realm of global health. Today, we're diving into a story that showcases the resilience and determination of communities, governments, and healthcare workers to protect our most vulnerable: children.
The Global Immunization Landscape
The latest data from the World Health Organization (WHO) and UNICEF reveals that, despite challenges, we're making progress in ensuring that more infants receive life-saving vaccines. In 2025, an impressive 90% of infants globally received at least one dose of the DTP vaccine, and 85% completed the full three-dose series. This is a significant achievement, especially considering the setbacks we faced during the COVID-19 pandemic.
However, as we celebrate these gains, it's crucial to recognize that we're still facing a persistent problem. Global coverage remains stagnant, hovering at the same level it was in 2009. This means that, while we're reaching more children, we're not reaching enough, and millions are still left unprotected.
The Zero-Dose Challenge
One of the most concerning trends is the number of "zero-dose" children—those who don't receive a single vaccine in their first year. In 2025, an estimated 13.5 million children fell into this category. While this number is lower than the previous year, it's offset by an increasing number of children who start the vaccination schedule but don't complete it. This drop-out rate is particularly worrying, as it leaves children vulnerable to preventable diseases.
What makes this particularly fascinating is the geographic distribution of these zero-dose children. More than half of them live in fragile, conflict-affected, or vulnerable (FCV) settings, even though these regions account for only about a third of the world's child population. In these challenging environments, immunization programs face immense strain due to political instability, insecurity, and chronic underfunding. For instance, Syria lost significant ground in DTP and measles coverage in just one year.
Progress and Stagnation
The data also highlights regional variations. While some regions, like the Americas and South-East Asia, have fully recovered and even improved their performance, others, like Africa, the Eastern Mediterranean, and Europe, are still lagging behind pre-pandemic levels. The Western Pacific region, in particular, has experienced a decline, leaving it furthest below its 2019 baseline.
What many people don't realize is that these regional differences are not just about geography; they're also a reflection of political commitment, structural challenges, and vaccine hesitancy. For example, South Africa has seen a significant drop in DTP coverage since 2019, and Bosnia and Herzegovina experienced a substantial decline in measles coverage after a promising increase in 2024.
The Power of Collaboration
Despite these challenges, there are success stories to celebrate. Sudan, for instance, recorded the largest single-country gain globally last year, demonstrating that progress is possible even in the midst of conflict. This is a testament to the dedication of healthcare workers and the resilience of communities.
Additionally, the support from organizations like Gavi, the Vaccine Alliance, has been instrumental in protecting children in lower-income countries. Today, children in these countries are covered against more diseases than ever before, with an average of 74% coverage across WHO-recommended vaccines. This is a remarkable achievement and a shining example of what can be accomplished when stakeholders unite for a common goal.
A Call to Action
As we reflect on these findings, it's clear that we have a long way to go to ensure that every child, regardless of their circumstances, receives the protection that vaccines provide. WHO and UNICEF are calling on governments and partners to take action to strengthen immunization programs, counter misinformation, and increase funding and investment in data systems.
In my opinion, this is not just about reaching global targets; it's about ensuring the health and well-being of every child. Immunization is a powerful tool, and it's our collective responsibility to ensure that it reaches every corner of the world. Let's not rest until every child is protected from preventable diseases.
