Table 2.
Summary of input parameters and their values used in the ABM model
Parameter | Description | Values | Source |
---|---|---|---|
Sand fly | Flight range | 500 m | [40] |
Active period | Every day from 00:00 h to 8:00 h in spring and summer | ||
Time interval between meal (forage/bite) and reproduce | 5 days | ||
Lifespan | 80 days | ||
No. of days a sand fly (egg) reaches the end of the larval stage and turns into the adult sand fly | 30 days | ||
Max no. of eggs produced by a sand fly in its whole life (lifespan) | 100 | ||
Max no. of eggs produced by a sand fly in each discrete time step (reproduction) | 30 | ||
Carrying capacity (maximum number of existing sand flies in each time step) | 1000 | Experts’ judgments | |
Sensory range for move | 500 m | ||
Sensory range for meal (bite/forage) | 300 m | ||
No. of days a sand fly spends in exposed state (ES) | 10 days | [41] | |
Baseline DMR (for larvae and adults) () | 0.1 | [33] | |
Exponential mortality increases with age () | 0.04 | ||
Degree of mortality deceleration () | 0.1 | ||
Rodent | Movement range | 300 m | Experts’ judgments |
Active period | Every day from 00:00 h to 8:00 h in spring and summer | [42] | |
Lifespan | 3 years | ||
No. of days a newborn rodent turns into the adult rodent | 100 days | ||
Max no. of rodent reproductions during their lifespan | 50 | ||
Max no. of rodent reproductions per reproduction | 5 | ||
Carrying capacity (max. no. of existing rodents in each time step) | 1000 | Experts’ judgments | |
Sensory range for move | 200 m | ||
Human | Movement range | 50 m | |
Active period | Every day from 8:00 h to 24:00 h | ||
Initial no. | 100–2000 | User settable | |
No. of days a human spends in the exposed state (EH) | 120 days | [41] | |
No. of days a human spends in the infected state (IH) | 150 days | ||
The probability of transiting from recovered state to susceptible state (γ) | 0.02 | [43] | |
Infection transmission cycle | Transmission probability of infection from sand fly to human and rodent (α) | 0.6 | [34] |
Transmission probability of infection from human and rodent to sand fly (β) | 0.275 |