USAID’s APHIA plus platforms; CDC’s on-going population-based surveillance such as the western Kenya Health and Demographic Surveillance System (HDSS) and the Kibera-based population-based surveillance site; and the Dadaab and Kakuma refugee camps (of note, refugees are often excluded from national policies and programs, to the detriment of the health of refugees and their host communities). These platforms, in particular the population-based surveillance platforms, offer the capacity to precisely measure inputs and outcomes, including interim and proxy indicators. Through the Learning Agenda, Kenya will be able to measure impact on GHI targets, or interim targets, across a spectrum of.