The article focuses on "The State of the World’s Children 2023" report published by UNICEF. It highlights the critical role of vaccines in saving lives and the challenges in global immunization efforts, especially for marginalized and underserved children. The report emphasizes the impact of COVID-19 on routine immunization, leaving millions of children unprotected from preventable diseases. It calls for urgent measures to restore and improve vaccination coverage, ensure equity in vaccine access, strengthen primary healthcare systems, and build trust in vaccines. The report also advocates for innovations and sustainable funding to achieve immunization for every child.