World Immunization Week 2025, observed from April 24 to 30, underscores the significant strides made in global vaccination efforts, particularly in the WHO South-East Asia Region. While celebrating the saving of over 154 million lives since 1974, the World Health Organization (WHO) highlights the pressing need to address gaps in immunization coverage. In 2023, approximately 2.7 million children in the region were entirely unvaccinated, with an additional 650,000 receiving incomplete immunization.