Parameter | Code | Distribution | Value | Plausible range | Source | |
---|---|---|---|---|---|---|

Lower | Upper | |||||

Village setup | ||||||

Humans per household | humans-per-hh | Poisson | 3.89 | 3.32 | 4.94 | RST |

Proportion of households raising pigs | prop-pig-owners | Binomial | 0.49 | 0.25 | 0.75 | |

Pigs per pig-raising household | pigs-per-hh | Exponential | 2.44 | 1.74 | 4.21 | |

Corral prevalence among pig-owner households | prop-corrals | Binomial | 0.5 | 0.23 | 0.92 | |

Latrine prevalence | prop-latrines | Binomial | 0.64 | 0.19 | 0.97 | |

Pig trade | ||||||

Pig slaughter age (median) | slaughter-age | Log-normal | 9.8 months | 9.5 | 10.0 | RST |

Proportion of pigs sold prior to slaughter | pigs-sold | Binomial | 0.51 | 0.33 | 0.75 | HH |

Proportion of sold pigs exported | pigs-exported | Binomial | 0.73 | 0.34 | 1 | HH |

Rate of pigs imported from endemic areas (imports/pig/week) | pig-import-rate | Uniform | 0.00105 | 0 | 0.00384 | HH |

Prevalence of cyst infection among imports | import-prev | Binomial | 0.134 | 0 | 0.3 | [18] |

Proportion of infected imported pigs with light cyst burden | light-to-heavy | Binomial | 0.76 | 0.5 | 1 | [18] |

Pork consumption | ||||||

Proportion of pork consumed by owner | hh-only-pork | Binomial | 0.40 | 0.22 | 0.71 | HH |

Proportion of pork sold after slaughter | sold-pork | Binomial | 0.12 | 0 | 0.5 | HH |

Proportion of shared pork eaten by owner | shared-pork-hh | Binomial | 0.8 | 0 | 0.84 | HH |

Human infection | ||||||

Incubation time to reach tapeworm maturity | tn-incubation | Fixed | 8 weeks | - | - | [27, 28] |

Tapeworm lifespan (mean, SD = 1 year) | tn-lifespan | Normal | 2 years | 0.5 | 4 | |

Travel | ||||||

Proportion of households with a frequent traveler | traveler-prop | Binomial | 0.42 | 0.24 | 0.65 | HH |

Frequency of travel to other endemic areas (every × weeks) | travel-freq | Uniform | 8 weeks | 5 | 16 | HH |

Duration of travel | travel-duration | Exponential | 1.75 weeks | 0.84 | 3.36 | HH |

Incidence of T. solium taeniasis during travel (risk/person/week)
| travel-incidence | Uniform | 0.00023 | 0.00004 | 0.002 | [18] |

Open defecation | ||||||

Latrine-use (prop. of households that “always” use latrine) | latrine-use | Binomial | 0.25 | 0 | 0.86 | GPS |

Radius of environmental contamination (median, meters from home) | cont-radius | Log-normal | 26 meters | 23 | 30 | GPS |

Rate of egg decay in environment (mean survival duration) | decay-mean | Exponential | 8 weeks | 1 | 26 | [29] |

Foraging | ||||||

Proportion of pig households with corrals that “always” corral pigs | corral-always | Binomial | 0.05 | 0 | 0.39 | GPS |

Proportion of pig households with corrals that “sometimes” corral pigs | corral-sometimes | Binomial | 0.57 | 0.25 | 0.61 | |

Proportion of pigs in “sometimes”-corral-households that are corralled | prop-corral-some | Binomial | 0.32 | 0.15 | 0.44 | |

Radius of pig roaming “home-range” (median) | home-range | Log-normal | 44 meters | 30 | 96 | |

Tuning parameters^{a}
| ||||||

Probability of human taeniasis upon slaughter of lightly infected pig | pl2h | Binomial | 0.0163 | 0.03 | 0.4 | CAL |

Probability of human taeniasis upon slaughter of heavily infected pig | ph2h | Binomial | 0.0046 | 0.003 | 0.04 | |

Probability of light cyst infection upon contact with T. solium eggs
| light-inf | Binomial | 0.0074 | 0.003 | 0.02 | |

Probability of heavy cyst infection upon contact with T. solium proglottids
| heavy-inf | Binomial | 0.0059 | 0.003 | 0.02 | |

Probability of exposure to T. solium eggs per human with taeniasis^{b}
| light-all | Binomial | 0.0141 | 0 | 0.05 | |

Probability of exposure to T. solium proglottids per human with taeniasis^{b}
| heavy-all | Binomial | 0.0182 | 0 | 0.05 |