Figure 3From: An exploratory GIS-based method to identify and characterise landscapes with an elevated epidemiological risk of Rhodesian human African trypanosomiasis True colour Landsat ETM+ composite of study area. True colour Landsat ETM+ composite of study area showing distribution of cases and controls (as counts for each location) in the first (a), second (b), third (c) and fourth (d) annual periods, with HAT treatment centre and Brookes Corner livestock market.Back to article page