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Digital Health Center App for Community and National Malaria Surveillance in Cambodia: Implementation Case Study
Pengby Ngor1,2,3, Huy Rekol1, Eng Thyda1
1National Center for Parasitology, Entomology and Malaria Control, No. 477, Betong (St.), corner of St. 92, Trapeang Svay Village, Phnom Penh, 12101, Cambodia, 855 889989899.
JMIR Public Health and Surveillance
|June 12, 2026
Summary
Cambodia
Area of Science:
- Digital health interventions
- Malaria surveillance and control
- Public health informatics
Background:
- Multidrug-resistant Plasmodium falciparum in the Greater Mekong Subregion threatened malaria control.
- Cambodia committed to malaria elimination by 2030, emphasizing strengthened surveillance.
- A digital Malaria Information System (MIS) with a health center app was introduced in 2017.
Purpose of the Study:
- Evaluate the real-world national implementation of Cambodia's Android-based health center app.
- Assess coverage, fidelity, timeliness, and data use of the app.
- Determine the app's effects on malaria surveillance, case management, and public health outcomes.
Main Methods:
- Assessed system performance and public health use via metadata, national data, and user surveys.
- Evaluated operational indicators: technical performance, data completeness, reporting timeliness.
- Measured surveillance outcomes: case notification, classification, reactive case detection, foci investigation.
- Conducted nationwide user experience surveys (761 health centers) and in-depth surveys (9 centers).
Main Results:
- The app showed strong technical performance, reliable reporting in low-bandwidth settings, and high data completeness (99%).
- High operational responsiveness: 95.7% of cases notified/classified within 1 day, timely reactive case detection and foci response.
- User satisfaction was high (96.3%), with rare technical issues (90.1%) and ease of navigation (91.7%).
- Identified challenges: limited internet, transport, and electricity; gaps in local analytical capacity.
Conclusions:
- The locally developed MIS and health center app significantly reduced malaria incidence through timely, complete reporting.
- Real-time analysis facilitated targeted interventions and decentralized decision-making for public health responses.
- Sustained user engagement and planned enhancements support transition to post-elimination surveillance, minimizing malaria reestablishment risk.
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