This article is excerpted from the Gavi Zero-Dose Learning Hub publication “Knowledge Translation for Zero-Dose Immunization Research”. The Geneva Learning Foundation (TGLF) hosted the first ZDLH Inter-Country Peer Learning Exchange session (ZDLH-X), in May 2023 with a focus on Bangladesh and Mali. The second online peer learning exchange, ZDLH-X2, in September 2023 focused on Nigeria and Uganda.