Routine Immunisation and Under-Five Mortality in Least Developed Countries: Longitudinal Evidence on Vaccine-Specific Moderation by Government Health Expenditure
Background Under-five mortality remains disproportionately high in least developed countries (LDCs), despite expanded access to routine childhood immunisation. This study examined six vaccine-specific associations with under-five mortality, the moderating role of government health expenditure (GHE), and variation acros...