Access a searchable hub of studies, guides, and scientific evidence WASHmobile Resources

Over the past decade, the WASHmobile team and partners have generated a growing body of evidence demonstrating the effectiveness, scalability, and cost-efficiency of targeted WASH interventions delivered through mobile health messaging. This WASHmobile research hub brings together key publications from our randomized controlled trials, formative research and other research studies across countries.

Here, you can explore peer-reviewed studies, implementation guides, and program resources that detail how WASHmobile interventions, including CHoBI7 in Bangladesh and PICHA7 in the Democratic Republic of the Congo, have been developed, tested, and refined to reduce diarrheal disease and improve child health outcomes.

24 Resources found with the selected filters


2025 Formative Research for Adapting the Cholera-Hospital-Based-Intervention-for-7-Days (CHoBI7) Water Treatment and Hygiene Mobile Health Program for Scalable Delivery in Rural Bangladesh

Adaption of CHoBI7 model rural contexts with increased scalability.

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2025 Effects of a Water, Sanitation, and Hygiene Program on Diarrhea and Child Growth in the Democratic Republic of the Congo: A Cluster-Randomized Controlled Trial of the Preventative Intervention for Cholera for 7 Days (PICHA7) Program

Main results from the PICHA7 program trial (2334 participants).

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2024 Effect of a Water, Sanitation, and Hygiene Program on Handwashing with a Cleansing Agent among Diarrhea Patients and Attendants in Healthcare Facilities in the Democratic Republic of the Congo: A Randomized Pilot of the PICHA7 Program

Investigation of the impact of PICHA7 on hygiene behaviors in the health facility.

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2023 Reduced Diarrhea Prevalence and Improvements in Handwashing with Soap and Stored Drinking Water Quality Associated with Diarrheal Disease Awareness Measured by Interactive Voice Response Messages in the CHoBI7 Mobile Health Program

CHoBI7 mHealth program impact on diarrhea awareness and WASH behaviors.

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2023 Gut microbiota shifts favorably with delivery of handwashing with soap and water treatment intervention in a prospective cohort (CHoBI7 trial)

Broader impacts of the CHobI7 mHealth program on child health.

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2022 Randomized Controlled Trial of the Cholera-Hospital-Based-Intervention-for-7-Days (CHoBI7) Cholera Rapid Response Program to Reduce Diarrheal Diseases in Bangladesh

Evaluation of the CHoBI7 mHealth ring delivery expansion (CATI).

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2022 Effects of a Water, Sanitation and Hygiene Mobile Health Program on Respiratory Illness in Bangladesh: A Cluster-Randomized Controlled Trial of the CHoBI7 Mobile Health Program

Investigation of the impact of the CHoBI7 mHealth program on respiratory illness.

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2022 Formative Research for the Development of the CHoBI7 Cholera Rapid Response Program for Cholera Hotspots in Bangladesh

Adaptation of the CHoBI7 mHealth intervention for ring delivery expansion (CATI).

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2022 Psychosocial Factors Mediating the Effect of the CHoBI7 Mobile Health Program on Handwashing With Soap and Household Stored Water Quality: A Randomized Controlled Trial

Psychosocial behavioral factors influencing the success of the CHoBI7 mHealth program.

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2022 Formative Research for the Development of Evidence-Based Targeted Water, Sanitation, and Hygiene Interventions to Reduce Cholera in Hotspots in the Democratic Republic of the Congo: Preventative Intervention for Cholera for 7 Days (PICHA7) Program

Adaptation of the CHoBI7 mHealth program for delivery in the DRC.

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2021 Effects of a Water, Sanitation, and Hygiene Mobile Health Program on Diarrhea and Child Growth in Bangladesh: A Cluster-randomized Controlled Trial of the Cholera Hospital-based Intervention for 7 Days (CHoBI7) Mobile Health Program

This study reports the main outcomes from the CHoBI7 mobile health program randomized controlled trial from 2016-2019 (2626 participants).

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2021 Formative Research for the Design of a Baby Water, Sanitation, and Hygiene Mobile Health Program in Bangladesh (CHoBI7 Mobile Health Program)

Formative research to develop the CHoBI7 mHealth program.

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2021 Identifying psychosocial determinants of water, sanitation, and hygiene (WASH) behaviors for the development of evidence-based Baby WASH interventions (REDUCE program)

Study on the development of the REDUCE Baby WASH program in rural DRC.

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2021 Formative research for the development of baby water, sanitation, and hygiene interventions for young children in the Democratic Republic of the Congo (REDUCE program)

Study from REDUCE Baby WASH program in rural DRC to develop and evaluate scalable interventions that reduce fecal contamination and exposure.

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2020 Effect of a water, sanitation and hygiene program on handwashing with soap among household members of diarrhoea patients in healthcare facilities in Bangladesh: a cluster-randomised controlled trial of the CHoBI7 mobile health program

Study testing the impact of the CHoBI7 healthcare facility modules on WASH behaviors while in the healthcare facility.

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2020 Diarrhoeal disease knowledge among diarrhoea patient housholds: findings from the randomised controlled trial of the Cholera-Hospital-Based-Intervention-for-7-days (CHoBI7) mobile health program

Impact of CHoBI7 mobile health program on diarrheal disease knowledge.

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2020 Formative research to scale up a handwashing with soap and water treatment intervention for household members of diarrhea patients in health facilities in Dhaka, Bangladesh (CHoBI7 program)

Formative research to improve CHoBI7 health facility delivery.

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2020 Process evaluation for the delivery of a water, sanitation and hygiene mobile health program: findings from the randomised controlled trial of the CHoBI7 mobile health program

Evaluation of CHoBI7 mHealth program implementation.

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2019 Formative research for the design of a scalable water, sanitation, and hygiene mobile health program: CHoBI7 mobile health program

Formative research to expand the CHoBI7 intervention to include an mHealth component.

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2017 Psychosocial Factors Mediating the Effect of the CHoBI7 Intervention on Handwashing With Soap: A Randomized Controlled Trial

Psychosocial behavioral factors influencing the success of the CHoBI7 program

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2017 Integration of water, sanitation and hygiene intervention delivery at health facilities with a reactive ring vaccination programme to reduce cholera

Letter supporting the importance of targetted WASH interventions.

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2016 Randomized Controlled Trial of Hospital-Based Hygiene and Water Treatment Intervention (CHoBI7) to Reduce Cholera

The first CHoBI7 program randomized controlled trial results.

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2016 Sustained Uptake of a Hospital-Based Handwashing with Soap and Water Treatment Intervention (Cholera-Hospital-Based Intervention for 7 Days [CHoBI7]): A Randomized Controlled Trial

Results of the first CHoBI7 trial on WASH behaviors.

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2016 Promotion of Cholera Awareness Among Households of Cholera Patients: A Randomized Controlled Trial of the Cholera-Hospital-Based-Intervention-for-7 Days (CHoBI7) Intervention

Impact of the first CHoBI7 trial on cholera and WASH awareness.

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