Malaria Stratification in Togo–Integration of precipitation and confirmed malaria data in DHIS2 to optimize Seasonal Malaria Chemoprevention (SMC)

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This document outlines a project on malaria stratification in Togo, focusing on integrating precipitation and confirmed malaria data into DHIS2 to optimize Seasonal Malaria Chemoprevention (SMC).

Key points:

  • Problem: Manual malaria stratification was time-consuming, difficult to reproduce, and reliant on external expertise due to varying climate patterns across Togo’s districts.
  • Solution: The National Malaria Control Program (NMCP), HMIS team (DSNISI), National Agency of Meteorology (ANAMET), and HISP WCA collaborated to digitize malaria stratification within the DHIS2-based HMIS.
  • Methodology: The project built on previous manual stratification work by the WHO, extending collaboration to DSNISI for DHIS2 configuration and ANAMET for climate data review. A custom DHIS2 app was developed to handle advanced analyses like calculating consecutive months of rainfall seasonality peaks (four consecutive months with total precipitation >= 60% of the year’s total).
  • Results: The initiative led to a streamlined, automated stratification system that identifies optimal SMC campaign start and end months, contributing to a differentiated national SMC calendar. Maps were generated within DHIS2 to display eligible districts and the required number of SMC cycles.
  • Impacts: Digitalization allows district-level health teams direct access to the stratification process, reduces reliance on external experts, promotes sustainability and local ownership, and enhances resource efficiency and malaria prevention effectiveness.
  • Opportunities/Next Steps: The approach can be extended to other climate-sensitive diseases or applied in other countries. Future work includes modeling to forecast malaria cases and estimate averted cases and deaths from SMC campaigns.
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