Most rock stars don’t sing about hygiene and sanitation. Then again, not many rock stars live and work in Niassa, one of the poorest places on earth, where people survive on subsistence farming and lack amenities such as indoor plumbing. Born and raised in Niassa, Feliciano Dos Santos wrote and performs the hit, “Wash Your Hands,” which is part of a public health campaign organized by his non-profit group, Estamos, that promotes the installation of pumps to provide clean drinking water and “EcoSan” toilets to improve sanitation. Read more and see videos…