Gavi's Zero-Dose Learning Hubs: enhanced approach for evidence generation and use from local to global

Reaching and fully immunizing zero-dose (ZD) children and missed communities is at the core of the Gavi, The Vaccine Alliance 5.0/5.1 and Immunization Agenda 2030 strategies. This is critical to ensure equitable immunization coverage and access to other primary health care services and to prevent outbreaks. The diversity of settings where these children live and the complexity of vaccination barriers require a complementary set of activities embedded in national systems. Learning approaches are needed to use evidence to improve equity and reach. Gavi has helped fill this gap with the Zero-Dose Learning Hub (ZDLH) initiative, which is composed of consortia partners in four countries-Mali, Nigeria, Uganda, and Bangladesh-and a global-level consortium. This paper describes the ZDLH design, theory of change,…