Vaccination coverage is the proportion of children in the Region receiving the recommended vaccines. In recent years, coverage with the diphtheria, tetanus, and pertussis vaccine (DTP3), the tracer vaccine, has remained around under 90% in the last 5 years. In 2023, approximately 88% of children aged under one year in the Region (approximately 13.5million children) received 3 doses of the DTP3 vaccine, protecting them against infectious diseases that can cause serious illnesses and disabilities or be fatal.

Based on the work that countries with PAHO’s support have done, as well as existing data quality and data use frameworks, we have developed this process model. Governance and sustainability are the foundation with three main pillars – human resources, processes, and tools – which support the data cycle: data needs, data collection, data availability, analysis and interpretation, and finally the data use for decision-making. Each stage of the cycle is crossed by the quality and aims to increase the body of knowledge regarding what works for increasing data quality and data use, and why they work.

Monitoring data at the subnational level is critical to helping countries prioritize and adapt vaccination strategies and operational plans, to address vaccination gaps and reach all people with life-saving vaccines.

Key data

Regional coverage of DPT3 for 2025 was 88%.*

Out of every 50 children under one year of age in the Region, approximately 6 have been left completely behind or have not had any doses of DPT-containing vaccine; while approximately 2 had started the DTP-containing vaccine schedule but had not completed it.

In 2025, only 15 countries achieved DTP3 coverage of at least 95%.

14 countries reported an increase in DTP3 coverage between 2024 and 2025.

It is estimated that approximately 1 million children under one year of age had not received their first dose of a DTP-containing vaccine (zero-dose children), while nearly 1.6 million had not received their third dose on time.

*Administrative data