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The Big Catch-up is a global initiative launched in April 2023 to close immunization gaps caused by the backsliding of immunization coverage during the COVID-19 pandemic, restore global immunization levels, and strengthen immunization systems so that catch-up activities become an integral part of immunization programmes.
This document outlines Frequently Asked Questions (FAQs) covering:
- Rationale for the Big Catch-up
- WHO recommendations for catch-up vaccination
- Scope of Gavi support for the Big Catch-up
- Monitoring, Evaluation, and Learning
This document will be updated on a rolling basis. Please check back to ensure you are viewing the most recent version.
Last update: 19 February 2024
Organisations
- Gavi, the Vaccine Alliance
- United Nations Children's Fund (UNICEF)
- World Health Organization (WHO)
Catch-up guidance and tools
You can find more information about "Catch-up guidance and tools" in the following Hot Topics:
| Title | Author | Year | Type | Language |
|---|
| Big Catch-up Information Pack for Regional and Country Teams | World Health Organization (WHO), UNICEF, Gavi, the Vaccine Alliance | 2024 | Guidance | English, French |
| Big Catch-Up Frequently Asked Questions (FAQs) | World Health Organization (WHO), UNICEF, Gavi, the Vaccine Alliance | 2024 | Guidance | English, French |
| Monitoring and reporting of essential immunization catch-up in the context of the Big Catch-Up | IA2030 Partnership | 2024 | Guidance | Arabic, English, Portuguese, French |
| Big Catch-up : Case Study Guidance and Sample Tools for Monitoring and Learning | IA2030 Partnership | 2024 | Tool | English, French |
| Rapid Convenience Monitoring - Monitoring un- and under-immunized communities (working draft) | World Health Organization (WHO) | 2025 | Guidance | English |
| Catch-Up Institutionalization Assessment Tool | IA2030 Partnership | 2025 | Tool | English |
| Big Catch-Up (BCU) The Real-Time Monitoring (RTM) Readiness Checklist | UNICEF | 2025 | Tool | English |
| Administering Catch-Up Vaccinations | Immunization Academy | 2022 | Training | English, French |
| Managing Multiple Injections | Immunization Academy | 2022 | Training | English, French |
| How to Record and Report Catch-Up Vaccinations | Immunization Academy | 2022 | Training | English, French |
| Leave no one behind: guidance for planning and implementing catch-up vaccination | World Health Organization (WHO) | 2020 | Guidance | English, Portuguese, French |
Catch-up guidance and tools-FR
| Title | Author | Year | Type | Language |
|---|
| Big Catch-Up Frequently Asked Questions (FAQs) | World Health Organization (WHO), UNICEF, Gavi, the Vaccine Alliance | 2024 | Guidance | English, French |
| Le Grand Rattrapage : Guide d’étude de cas et exemples d’outils pour le suivi et l’apprentissage | IA2030 Partnership | 2024 | Tool | French, English |
| Le Grand Rattrapage : Dossier d'information pour les équipes régionaux et nationaux | World Health Organization (WHO), UNICEF, Gavi, the Vaccine Alliance | 2024 | Guidance | French, English |
| Catch-Up Institutionalization Assessment Tool | IA2030 Partnership | 2025 | Tool | English |
| Monitorage et rapportage du rattrapage des vaccinations essentielles dans le cadre du Grand Rattrapage | IA2030 Partnership | 2024 | Guidance | Arabic, French, Portuguese, English |
| Rapid Convenience Monitoring - Monitoring un- and under-immunized communities (working draft) | World Health Organization (WHO) | 2025 | Guidance | English |
| Gestion des injections multiples | Immunization Academy | 2022 | Training | French, English |
| Administration des vaccins rattrapage | Immunization Academy | 2022 | Training | French, English |
| Big Catch-Up (BCU) The Real-Time Monitoring (RTM) Readiness Checklist | UNICEF | 2025 | Tool | English |
| Comment enregistrer et déclarer les vaccinations de rattrapage | Immunization Academy | 2022 | Training | French, English |
| Ne laisser personne de côté : Directives pour la planification et la mise en œuvre de la vaccination de rattrapage | World Health Organization (WHO) | 2020 | Guidance | French, Portuguese, English |
