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WHD, Sesame Workshop and World Vision have partnered together to investigate key impacts and outcomes of the WASH UP! program. The WASH UP! initiative aims to reduce the number of children suffering or dying from preventable and treatable diseases by providing access to meaningful sanitation and hygiene education and the necessary infrastructure. The initiative promotes availability of clean water and behavioral changes in sanitation and hygiene by empowering children with the knowledge and skills they need to teach their friends and family about staying healthy. To build evidence around and improve WASH infrastructure and behavior change programming through WASH UP!, WHD researchers are conducting an impact evaluation of the program to investigate key impacts and outcomes over a three-year period.