The BLAAAST Trial: Bangladesh Lung Auscultation AI for Antibiotic Stewardship Randomized Controlled Trial

Inclusion Criteria

Inclusion Criteria: * 2 to 59 months of age (60 days to 59 months 29 days), * illness duration 14 days or less, * meeting non-severe pneumonia criteria, and * from the trial catchment areas. Exclusion Criteria: * prior participation, * age \<2 months or \>59 months, * illness duration \>14 days, * not meeting IMCI-defined non-severe pneumonia criteria, * oxygen saturation (SpO2) \<90%, * moderate or severe malnutrition, * known chronic disease, * history of prematurity, * one or more high risk clinical signs (any WHO-defined clinical danger sign and/or WHO-defined emergency sign), * known antibiotic exposure in the past 1 week, * non-respiratory illness requiring systemic antibiotic treatment according to IMCI guidelines.