Table 1.
Calculated and fixed parameters of the model.
| Parameter | Value | Description | Source |
|---|---|---|---|
| N | 10,370,744 | population | (Macrotrends.net, 2022c) |
| Λ | 176 per day | influx rate | (Macrotrends.net, 2022a) |
| 2·10−4 per day | rate of vaccination | (govgr) | |
| 1 per day | rate at which A are detected and revert to Idclass | assumed | |
| μ | 1/(82·365) per day | natural mortality rate | (Macrotrends.net, 2022b) |
| emask | 0.79 | efficacy of mask | (Yu Wang et al., 2020) |
| na | 0.76 | modification parameter that reduces infectiousness from A | Krieg et al. (2022) |
| a | 0.17 | proportion of H that pass away | (ECDC; NPHO) |
| v | 1/140–180 per day | rate at which LS revert to S due to immunity weakens | (Andrews et al., 2022; Chemaitelly et al., 2022; Levin et al., 2021) |
| 0.75 (Delta) 0.7 (Omicron) | effectiveness of vaccines or natural immunity | (Collie et al., 2021; Evans & Jewell, 2021; Kodera et al., 2022; Lopez Bernal et al., 2021; Tregoning et al., 2021) | |
| σu | 1/5.8 per day | rate at which E become infectious | Kang et al. (2021) |
| σh | 1/4 per day | rate at which I become H | Zhang et al. (2020) |
| γα | 1/6 per day | recovery rate of A | (Rachaniotis et al., 2021; Sypsa et al., 2021) |
| γi | 1/6 per day | recovery rate of Id | (Rachaniotis et al., 2021; Sypsa et al., 2021) |
| γi/δi | 1/12–18.5 per day | recovery/disease induced death rate of H | Zhao et al. (2021) |
| p | 25% | proportion/probability of quarantined infected that cause secondary attack | Krieg et al. (2022) |
| l | 93% (Delta) 78% (Omicron) | sensitivity of self test diagnosis on asymptomatic individuals | (Bayart et al., 2022; Bekliz et al., 2022; Cocherie et al., 2022; Sun et al., 2022) |