From: Human behaviour, NPI and mobility reduction effects on COVID-19 transmission in different countries of the world
Symbol
Definition
Initial Value
Reference
Ntotal
Population size
Table 4
σ
Rate at which exposed become infectious (days −1)
1/2.5
[36]
a
Proportion of permanently asymptomatic cases
0.5
[37],[38],[39]
ε
Proportion of compliance with isolation
0.95
assumed
κ
Isolation rate
1
γ
Recovery/removal rate
1/7
[40]
