Guest blog post by former Health Program Coordinator, Sonia. Improving health falls upon a spectrum- it is something that is always progressing, but is never complete. So how do you measure the success of a program? How do you know when to hand over a program to the community it rightly belongs to? In July of this year, GHEI, after 7 years of involvement, GHEI officially handed over its Hand Washing With Soap (HWWS) program to local schools. At GHEI, we use evidence and data