Preventative Intervention for Cholera for 7 Days

This study develops and evaluates a targeted water, sanitation, and hygiene (WASH) intervention to reduce cholera and severe diarrhea among the household members of diarrhea patients in South Kivu, Democratic Republic of the Congo (DRC) through formative research and a randomized controlled trial. This study will also investigate cholera and severe diarrhea transmission dynamics among diarrhea patient households using genomics and a risk factor analysis. The study will be divided into two phases: (1) the Formative Research and Intervention Development Phase; and (2) the Intervention Implementation and Evaluation Phase.

In the two arm randomized controlled trial of diarrhea patient households, we compare the standard message given in DRC to diarrhea patients to the PICHA7 mHealth program. The standard message arm is the standard recommendation given in DRC to diarrhea patients at discharge on the use of oral rehydration solution (ORS) for dehydration, and the importance of handwashing with soap and water treatment for disease prevention. The PICHA7 mHealth program arm will first be delivered during a health facility visit by a health promoter bedside to a diarrhea patient (adults and child) and their accompanying household members during the time of illness followed by two home visits during the 7-day high risk period for diarrheal disease transmission. The health promoter delivers a pictorial WASH module on how diarrhea can spread, and instructions on handwashing with soap, water treatment, and safe water storage. A diarrhea prevention package is provided containing: a one-month supply of chlorine tablets for water treatment, a soapy water bottle for handwashing, a handwashing station, and a water vessel with a lid and tap to ensure safe water storage. After health facility delivery of the program, patient households receive weekly voice and text messages from the PICHA7 mHealth program over 12 months on the recommended WASH behaviors.

• Child development for children under 5 years of age [Срок оценки: 12 and 24 months after enrollment]
• Handwashing with soap at stool and food related events [Срок оценки: 1 week and 1, 3, 6, 9, 12, 18, and 24 months after enrollment]
• Free chlorine concentration in stored drinking water [Срок оценки: 1 week and 1, 3, 6, 9, 12, 18, and 24 months after enrollment]
• Presence of Vibrio cholerae and E. coli in stored drinking water [Срок оценки: 1 week and 1, 3, 6, 9, 12, 18, and 24 months after enrollment]
• WASH psychosocial factors [Срок оценки: 1 week and 12 and 24 months after enrollment]
• non-baseline cholera infections confirmed by bacterial culture among household members of cholera patients [Срок оценки: 1 Month]
• Height-for-age among children under 2 years of age [Срок оценки: 12 and 24 months after enrollment]
• Height-for-age among children under 5 years of age [Срок оценки: 12 and 24 months after enrollment]
• Weight-for-age among children under 2 years of age [Срок оценки: 12 and 24 months after enrollment]
• Weight-for-age among children under 5 years of age [Срок оценки: 12 and 24 months after enrollment]
• Weight-for-height among children under 2 years of age [Срок оценки: 12 and 24 months after enrollment]
• Weight-for-height among children under 5 years of age [Срок оценки: 12 and 24 months after enrollment]