Table 4 Probability distributions of the number moving between compartments over time interval Δt

From: Social media effectiveness as a humanitarian response to mitigate influenza epidemic and COVID-19 pandemic

  Description Distribution
\(\Delta {N}_{SV}\) The number moving from S to V over Δt \(Binomial(S,1-{e}^{-v\Delta t})\)
\(\Delta {N}_{{S}_{1}V}\) The number moving from S1 to V over Δt \(Binomial({S}_{1},1-{e}^{-{v}_{1}\Delta t})\)
\(\Delta {N}_{SE}\) The number moving from S to E over Δt \(Binomial(S,1-{e}^{-\frac{\beta }{N}I\Delta t})\)
\(\Delta {N}_{{S}_{1}E}\) The number moving from S1 to E over Δt \(Binomial({S}_{1},1-{e}^{-\frac{{\beta }_{1}}{N}I\Delta t})\)
\(\Delta {N}_{{SS}_{1}}\) The number moving from S to S1 over Δt \(Binomial(S,1-{e}^{-\tau M(t)\Delta t})\)
\(\Delta {N}_{EI}\) The number moving from E to I over Δt \(Binomial(E,1-{e}^{-\sigma \Delta t})\)
\(\Delta {N}_{IR}\) The number moving from I to R over Δt \(Binomial(I,1-{e}^{-\gamma \Delta t})\)
\(\Delta {N}_{ID}\) The number moving from I to D over Δt \(Binomial(I,1-{e}^{-\delta \Delta t})\)