Table 2.
Description and values of parameters in the age-specific SEIAR model
| Parameter | Description | Unit | Value | Range | Method |
|---|---|---|---|---|---|
| βii a | Transmission relative rate among age group i | Individuals− 1·days− 1 | – | ≥ 0 | Curve fitting |
| βij a | Transmission relative rate from age group i to j | Individuals−1·days− 1 | – | ≥ 0 | Curve fitting |
| βji a | Transmission relative rate from age group j to i | Individuals−1·days− 1 | – | ≥ 0 | Curve fitting |
| βjj a | Transmission relative rate among age group i | Individuals−1·days− 1 | – | ≥ 0 | Curve fitting |
| κ | Relative transmissibility rate of asymptomatic to symptomatic individuals | 1 | 1 | 0–1 | Reference [16, 22, 23] |
| p | Proportion of the asymptomatic | 1 | 0.2015 | 0.016–0.78 | Analysis of data |
| ω | Incubation relative rate | days−1 | 0.1429 | 0.05556–0.5 | Analysis of data |
| ω’ | Latent relative rate | days−1 | 0.1429 | 0.05556–0.5 | Analysis of data |
| γ | Recovered/Removed rate of the infectious | days−1 | 0.2 | 0.1111–0.3333 | Analysis of data |
| γ’ | Recovered/Removed rate of the asymptomatic | days−1 | 0.2 | 0.04762–1 | Analysis of data |
| f | Fatality of the disease | 1 | 0.003552 | 0–1 | Analysis of data |
a: i and j represent age group 1 to 4, respectively, and i ≠ j; - means not applicable