Skip to main content
. 2023 Jul 6;8(3):794–805. doi: 10.1016/j.idm.2023.07.002

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)
ψu 2·10−4 per day rate of vaccination (govgr)
σα 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)
εvac 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)
γii 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)