Susceptible Sg  (1a)  d S g    d t   =  − λ g   S g
Exposed Eg  (1b)  d E g    d t   =  λ g   S g   − η E g
Asymptomatic Ag  (1c)  d A g    d t   = η ( 1 − δ  )  E g   − μ A g
Infectious Ig  (1d)  d I g    d t   = η δ E g   − μ I g
Hospitalised in acute bed Hg  (1e)  d H g    d t   = μ γ g   I g   − ρ H g
Hospitalised in IC Cg  (1f)  d C g    d t   = ρ ϵ H g   − ψ C g
Recovered Rg  (1g)  d R g    d t    = μ A g   + μ ( 1 − γ g    )  I g   +   ( 1 − ϵ  )  ( 1 − κ  )  ρ H g   +   ( 1 − ω g   ) ψ C g
Death Dg  (1h)  d D g    d t   = ( 1 − ϵ  )  κ ρ H g   + ω g   ψ C g