Fig. 1

Location of 5 sampled schools and estimated prevalence of malaria. a Schematic map of the five sampled primary schools in the Lake Albert region, the blue area indicates Lake Albert. The primary schools of Bugoigo, Walakuba and Runga on the lakeshore plain (Low-Altitude), whereas Biiso and Busingiro are located on top of the escarpment (High-Altitude). Once part of Masindi District, the schools are now located within Buliisa District after administrative areas were revised. b Estimated prevalence of malaria infection by altitude and school distance from the shoreline for each examined diagnostic test