Child Immunization Trend (DTP3)
Global DTP3 immunization coverage among infants (2025: 85%)
Historical Timeline
WHO launches the Expanded Programme on Immunization (EPI); basic routine childhood vaccination remains under 20% in developing nations
Gavi, the Vaccine Alliance is established, helping fund and distribute life-saving vaccines to lower-income countries
Peak pre-pandemic global immunization coverage, with 86% of infants receiving three DTP doses globally
Global coverage recovers to 85% after pandemic backsliding, protecting over 108 million infants annually (WHO/UNICEF WUENIC data)
Key Insights
DTP3 as Health Benchmark
Diphtheria-Tetanus-Pertussis (DTP3) coverage is the global gold standard indicator for evaluating the reach and efficiency of routine health systems.
Pandemic Recovery
Childhood vaccination suffered the largest backslide in 30 years during the COVID-19 pandemic (dropping to 81% in 2021). Coverage has rebounded back to 85% globally.
Zero-Dose Children Challenge
Despite 85% coverage, approximately 14.3 million children worldwide are "zero-dose" (received no vaccines at all), concentrated in remote and conflict-affected areas.
New Vaccine Introductions
Beyond DTP, global rollouts of HPV, pneumococcal, rotavirus, and new malaria vaccines (RTS,S and R21) are rapidly improving child survival worldwide.
Sources & Citations
WHO / UNICEF Immunization Coverage (WUENIC)
WHO - WUENIC Estimates of National Immunization Coverage
Official annual estimates of global, regional, and national immunization rates.
Gavi, the Vaccine Alliance
Gavi - Immunisation Progress & Impact
Data on vaccine access, equity, and disease prevention in lower-income nations.
World Bank Open Data
World Bank - Immunization, DPT (% of children ages 12-23 months)
Historical time series data for child immunization rates worldwide.