Figure 5.

Effectiveness in achieving morbidity control and elimination goals for Schistosoma haematobium under standard WHO control strategy and modified adaptive strategy for high, moderate, and low-prevalence communities

Total prevalence and heavy infection prevalence (>50 eggs per 10 mL urine) in children aged 5–14 years are shown. Standard treatment coverage is 75% among children aged 5–14 years; increased treatment coverage is 85% in children aged 5–14 years and 40% in those aged 15 years and older. 2020 goals of morbidity reduction (<5% prevalence of heavy infection among children aged 5–14 years) are displayed by the blue horizontal lines and elimination as a public health problem (<1% prevalence of heavy infection among children aged 5–14 years) goals are displayed by the red horizontal lines, in the right-hand panels. Box-whisker charts show the range of possible outcomes (due to input uncertainty) for low, moderate, and high-prevalence villages. Re-evaluation for the standard guidelines is shown at year 5 for high-prevalence villages and year 6 in low and intermediate-prevalence villages. For modified WHO guidelines, re-evaluation occurs at year 3 for high-prevalence and year 4 for low and moderate-prevalence villages. Quartiles are different between WHO standard and modified strategies for year 1 due to modelled uncertainty. The grey horizontal lines indicate 50% and 10% prevalence.