Big Catch-Up Real-Time Monitoring Learning Brief
Leveraging Big Catch-Up Experience to Strengthen Routine Immunization through Digital Solutions and Real-Time Monitoring
Highlights
This Learning Brief summarizes how countries have used real-time monitoring (RTM) to improve planning, delivery, and monitoring of the Big Catch-Up (BCU) immunization activities. It consolidates lessons from national reports, webinars, and regional discussions on adapting digital and paper-based tools to reach zero-dose and under-immunized children and to strengthen data-driven decision-making. The Learning Brief outlines practical strategies for embedding RTM within routine immunization systems and highlights how timely, actionable data can improve responsiveness, accountability, and equity in vaccination services.
The document is organized around three key phases of the immunization program cycle:
- Planning: aligning RTM approaches with national systems to map target populations and strengthen readiness.
- Implementation: using digital tools and dashboards for real-time supervision, adaptive management, and course correction.
- Evaluation: applying RTM data to assess performance, document adaptations, and guide future programming.
This Learning Brief was developed by UNICEF and partners through a consultative and offers a practical roadmap for sustaining the gains of the Big Catch-Up through integrated digital health systems that support continuous monitoring and equitable immunization coverage.
