Helmut Kloos has been a research associate at the University of California, San Francisco Medical Center, since retirement as an associate professor in geography at Addis Ababa University, Ethiopia. He holds a PhD from the University of California at Davis, and an MA and a BA from California State University, Fresno. Dr. Kloos is the editor of The Ecology of Health and Disease in Ethiopia. He has also published articles in African Studies Review, The Geographical Journal, International Migration Review, Ethiopian Journal of Development Research, Disasters, Northeast African Studies, Journal of Tropical Geography, Ethiopian Journal of Agricultural Science, Waterlines, and in health journals.

About Worku Legesse

Worku Legesse is an associate professor of applied ecology at Jimma University in Ethiopia. He holds a PhD from University College Cork in Ireland, an MSc from Gent University in Belgium, and a BSc from Asmara University in Eritrea. Dr. Worku has written a book chapter on water supply and sanitation in Ethiopia. He also published articles in the Malaria Journal, Environmental Monitoring and Assessment, Ecological Indicators, and Bioresource Technology. He also initiated a partnership between Gent University and Jimma University to study the impacts of the Gilgel Gibe I Hydroelectric Dam in Ethiopia.