Fig. 5

STH prevalence (% infected) plotted against the average intensity for studies that measured intensity in eggs per gram (EPG) of faeces. Red line indicates the upper threshold for low intensity, purple line indicates the upper threshold for medium intensity, above purple line is high intensity as defined by the WHO [15]. a = Ascaris lumbricoides, (b) = Trichuris trichiura, (c) = Hookworm