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. 2017 Mar;18:29–37. doi: 10.1016/j.epidem.2017.02.003

Table 1.

Model comparison.

Model structure ICL model CWRU model
Simulation framework Deterministic-probabilistic Deterministic-probabilistic
Implementation language R Mathematica/Python
Age-related exposure to infection Relative exposure estimated from age-stratified infection intensity data Baseline test data provides relevant SAC parameters, the other (untested) younger/older age groups are estimated via community dynamic simulations (Y1-Y3)
Distribution of individual predisposition to heavy or light infection No individual-level propensity Age-specific biological (in-host) parameters: worm fecundity, egg-release aggregation
Age-related contribution to the reservoir of infection in the environment Assumed to be identical to exposure to infection Age-specific exposure/contamination, and the resulting human-snail transmission coefficients
Distribution of contributions to reservoir of infection among individuals No individual-level contributions No individual contribution, but age-specific contributions
Acquired immunity to infection Assume no acquired immunity Assume no acquired immunity
Coverage and compliance Structured by age group Structured by age group
Demographic data source Data collected in SCORE project Data collected in SCORE project
Reproductive model Mating function for dioecious monogamous parasite Mating count for dioecious monogamous parasite, with age-specific fecundity and crowding. Low cut-off worm burden for mating success