Table 1.
Constant parameter αij definitions and units.
| Parameter | Definition and unit |
|---|---|
| τw | Development time of worms in human host (day) |
| μw | Worm natural mortality (/day) |
| h | Eggs excreted (/worm pair/gram feces) |
| μz | Patent and latent snail death rate (/day) |
| σ | Cercarial production (/sporocyst/day) |
| α | Schistosome acquired (/cercaria/m2 contact) |
| ρ | Snail infection (/miracidium/m2 surface water) |
| γ | Spatial index representing the degree to which water contact and cercarial distribution converge |
| ξ | Spatial index representing the degree to which susceptible snail and miracidial distribution converge |
| g0 | Mean fecal output (g) |
| β | Fraction of eggs entering the environment due to agricultural fertilization practice |
| Ah | Snail habitat (m2) |
| As | Surface water area (m2) |
| ni | Number of people in group i |