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Table 1 Parameter values used for Schistosoma mansoni

From: Determining post-treatment surveillance criteria for predicting the elimination of Schistosoma mansoni transmission

Parameter Value Source
Fecundity (egg output per female worm in absence of density dependence) 0.34 eggs/female worm/sample [11, 23, 24]
Variation in egg counts within individuals 0.87 [23, 24]
Aggregation parameter for high baseline prevalence settings 0.24 [5, 25, 26]
Density dependence fecundity 0.0007/female worm [12, 25]
Worm lifespan 5.7 years [11, 27]
Drug efficacy 86% [28]
Low adult burden setting: age-specific contact rates for 0–5, 5–10, 10–16, 16+ years of age 0.01, 1.2, 1, 0.02 [5, 12]
High adult burden setting: age-specific contact rates for 0–5, 5–12, 12–20, 20+ years of age 0.01, 0.61, 1, 0.12 [5, 12]
Prevalence of infection Percentage of population having egg count threshold (or eggs per gram, epg) > 0
Prevalence of heavy-intensity infections Percentage of population having egg count threshold ≥ 16 (epg ≥ 400 divided by 24 to convert to egg count) [29]
Human demography Based on Uganda’s demographic profile [30, 31]