Table 1. Model parameters.
| Symbol | Parameter | Units | Baseline value | Range | Reference |
|---|---|---|---|---|---|
| S t=0 | Initial susceptible prop | Percent | 99.9 | NA | NA |
| I t=0 | Initial infected prop | Percent | 0.1 | NA | NA |
| R t=0 | Initial removed prop | Percent | 0 | NA | NA |
| R 0 | Base reproduction number | New infections / infected indiv | 2.4 | 2.0–2.8 | NA |
| NPI t | NPI intensity effect | Unitless multiplier | Varies | 0–100 | [15] |
| γ | (Avg infec duration)−1 | Days−1 | 14−1 | NA | [16] |
| VE S | Vax effic vs infec | Scalar | 0.95 | {0.95, 0} | [17, 18] |
| VE I | Vax effic vs trans | Scalar | 0.3 | {0, 0.7} | NA |
| VE P | Vax effic vs progr | Scalar | 1.0 | {0, 1.0} | [17, 18] |
| P vac | Final vax coverage | Percent | 50 | {20, 50, 80} | [2] |
| p rural | Rural pop | Percent | 60 | NA | [13] |
| b | Baseline migration | Probability / time step | 20 000 dtpmi | 20–200 000 dtpmi | NA |
| N tot | Model agents | Integer | 4 × 105 | NA | NA |
| n rural | Rural nodes | Integer | 199 | NA | NA |
| n urban | Urban nodes | Integer | 1 | NA | NA |
| t | Time step | Days | 1 | NA | NA |