Bangladesh - Qualitative research and process evaluation to support cluster-randomized trials of water and sanitation interventions in urban and rural Bangladesh
Cholera and other diarrheal disease are top health priorities in Bangladesh. Two on-going trials of community-based water and sanitation interventions promoted by community health workers, are aimed to answer the following research questions: Can these interventions achieve the coverage necessary? result in behavior change? be effective in reducing diarrheal disease? in all family age groups, and particularly in children under two? beyond effects on diarrheal disease, can these interventions have an effect in young children's growth and development? What are the separate and combined effects of handwashing, water chlorination, and sanitation components? Would a nutritional supplementation intervention have similar effects? would it have an additional advantage when combined with water, hygiene and sanitation interventions? These trials are being implemented by a larger team including investigators from Stanford University, University of California-Berkeley, University of Buffalo and JHSPH. The JHSPH role is specifically related to the design and evaluation of behavior change interventions. Other investigators are examining microbiological, nutritional and child development incomes. This work will relate to the JHSPH work on behavior change interventions.