Table 3.
Essential Formula of the Model
| Change of Status | Formula33,34 | Note |
|---|---|---|
| From susceptible to exposed | -(R0/Dinf)*(1-VE)*VC*S*Ib/P | Dinf = infectious duration, Ib = Infectees (before isolation), P = total population, R0 = basic reproduction number, S = susceptible population, VC = vaccination coverage, VE = vaccine efficacy |
| From susceptible to infected (before isolation) | -E/Dinc | Dinc = incubation period, E = Exposed population |
| From infected (before isolation) to infected (after isolation) from active case finding | -ACFC*(Ib/(Dlag*(1-ACFE)) | ACFC = active case finding coverage, ACFE = active case finding effectiveness, Dlag = lag days from infected to isolation, Ib = Infectees (before isolation) |
| From infected (before isolation) to infected (after isolation) from routine health services | -(1-ACFC)*(Ib/(Dlag*) | ACFC = active case finding coverage, Dlag = lag days from infected to isolation, Ib = Infectees (before isolation) |
| From infected to recovered | -Ia/Drx | Drx = hospitalisation days, Ia = Infectees (after isolation) |
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