- At the village-level, all households that are classified as ubudehe 1 & 2 according to updated 2012 government registers, are part of the village, are able to provide informed consent, and that have at least one child under 4 years of age at the time of enrollment will be eligible for participation. Presence of a child under 4 years of age will be assessed by checking dates of birth or recorded age in months in the CHW register of children <5 years (Igitabo Cy'Ibikorwa Byo Gukurikirana), which are maintained at the village by CHW (though occasionally these are transferred to health centers). If this data is missing will be assesses based on CHW's report. In those cases where a village has more than the required number of participating households (10 household), a random selection of 10 households will be drawn.