In today’s rapidly evolving public health landscape, Lifecourse Immunization stands out as a foundational strategy to protect populations, reduce healthcare burdens, and improve national preparedness. This approach emphasizes the value of vaccination across every stage of life—not just as an individual health intervention, but as a vital framework for national resilience and long-term community well-being.

This Resource Kit provides insights into why Lifecourse Immunization matters—from protecting vulnerable groups and easing pressure on healthcare systems, to reducing antibiotic use, safeguarding economies, and supporting global health security. It also outlines the critical components needed for effective policy implementation, including inclusive vaccination programs, public awareness, equitable access, and investment in vaccine innovation.