Lancet
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Acute respiratory infection (ARI) is a leading cause of morbidity and mortality globally, with 83% of ARI mortality occurring in low-income and middle-income countries (LMICs) before the COVID-19 pandemic. We aimed to estimate the effect of interventions promoting handwashing with soap on ARI in LMICs. ⋯ Bill Melinda Gates Foundation, Reckitt Global Hygiene Institute, and UK FCDO.