Impact of electronic immunization registries and electronic logistics management information systems in four low-and middle-income countries

There is increasing interest in low-and middle-income countries (LMICs) to introduce and scale-up digital health tools like electronic immunization registries (eIR), and electronic logistics management information systems (eLMIS) to support immunization services. An evaluation of the use of these tools was conducted in four LMICs to inform decisions about their further expansion and investments. Purposive sampling of regions, districts, and health facilities was done in each country based on predefined criteria. Primary data were collected between October 2021 and September 2022 in 50 health facilities in Guinea, 88 in Honduras, 36 in Rwanda, and 101 in Tanzania using semi-structured questionnaires, standardized competency assessments and data accuracy checks.