Jack Colford, MPH, MD, PhD is a Professor of Epidemiology at the School of Public Health at the University of California, Berkeley. He trained at Johns Hopkins (medical school), UC San Francisco, (Internal Medicine residency, Infectious Diseases fellowship, HIV/AIDS fellowship), Stanford (Chief Medical Resident), and UC Berkeley (MPH and PhD in Epidemiology). He has received clinical and classroom teaching awards at Stanford, UC San Francisco, and UC Berkeley. Each year he teaches three semester-long courses at UC Berkeley on Intervention Trial Design, Impact Evaluation, and Epidemiologic Methods. Colford?s principal research focus is on interventions designed to reduce diseases related to water, sanitation, hygiene, and nutrition. He has been the Principal Investigator of four NIH R01 awards as well as R03 and R21 awards. He is the Principal Investigator of the WASH Benefits trial (washbenefits.org) which is funded by the Bill and Melinda Gates Foundation. WASH Benefits is a 7-arm RCT enrolling 15,000 children in Kenya and Bangladesh designed to evaluate the separate and combined impacts of early childhood interventions targeting water, sanitation, hygiene, and nutritional status on growth and development. Colford has also led numerous research studies sponsored by the US Centers for Disease Control, the US Environmental Protection Agency, the World Bank, and the state of California.