Figure 4From: Mapping of schistosomiasis and soil-transmitted helminthiasis in the regions of Littoral, North-West, South and South-West Cameroon and recommendations for treatment Comparative maps of the overall soil-transmitted helminthiasis prevalence in the four surveyed regions of Cameroon. Prevalence distribution in 1985–1987 (A) and in 2011 (B).Back to article page