This study aims to test whether weight-for-age (WFA) and MUAC can be effectively utilised in existing programmes to capture these children with single and dual deficits and reach considerably more children at a high risk of death. It addresses question two in ENN's 2019 research announcement: "What intensity, duration of treatment, and discharge criteria are appropriate for children identified using the combinations of the indicators/thresholds identified (WFA < -3 or MUAC < 115mm)?"