Table 1.
Description of model parameters and baseline values.
| Par | Description | Value | Source |
|---|---|---|---|
| Λ | Recruitment rate | 1000 | Assumed |
| β | Probability of infection per contact | 8.073×10−3 | [5] |
| c | Average contacts of infectious person per time | 0.5297 | [9] |
| θ | Rate of loss of immunity after recovery | 0.0357 | — |
| ρ | Rate of recovery from COVID-19 | 1/10 | [5] |
| δ 1 | Rate of progression from exposure to the symptomatic stage | 1/5.2 | [10] |
| δ 2 | Rate of progression from mild to severe symptomatic stage | 1/5.8 | [10] |
| μ | Natural death rate in humans | 1.86×10−2 | — |
| μ d | COVID-19-induced death rate in humans | 1.50×10−2 | [5] |
| μ v | Death rate of coronaviruses on surfaces | 3.33×10−1 | Estimated |
| f 1 | Proportion of immigrants who are exposed | 0.100 | — |
| f 1 | Proportion of immigrants who are mildly symptomatic | 0.0100 | — |
| η 1 | Coefficient of infectivity of exposed persons | 1.5 | Assumed |
| η 2 | Coefficient of infectivity of severely symptomatic persons | 0.100 | Assumed |
| η 3 | Coefficient of viral shedding of severely symptomatic persons | 0.001 | Assumed |
| q | Efficacy of quarantine to prevent transmission | 0.5 | Assumed |
| β v | Surface-to-human transmission probability | 0.001 | — |
| K | Coronavirus concentration on surfaces | 103 cells/m2 | — |
| ξ | Viral shedding rate of infected persons | 100 cells/day | — |
| ν | Rate of disinfection of the environment | — | — |