Table 2. Model notation and parameter values shared among all models.
Parameter | Description | Value |
β0 | Initial Transmission Rate | |
γ | Recovery rate | γ{1,3} = 0.2, γ{2} = 0.18 |
μ | Population turn over rate | μ{2} = 0.02 |
p0 | Initial vaccination rate | |
p | Rate of change of β0 or p0 | p{1,2,3} = 0.002 |
ν | External rate of infection | ν{1,2} = 0, ν{3} = 0.001 |
N | Population Size | N = 10, 000 |
Δt | Time aggregation of incidence data | Δt = 1, daily |
T | Time simulations run for | T = 500 (after burn in of 300 days) |
BW | Bandwidth for RoI approx. simulations | BW = 30 |
Model Notation | Description | |
ζ{1},{3} | Fluctuations about the infected steady state | |
ζ1, ζ2 | Fluctuations about the susceptible and infected steady state respectively (vaccination model) | |
ϕ(t) | Proportion of infected individuals (mean-field) | |
ψ(t) | Proportion of susceptible individuals (mean-field) | |
σ(t) = β(t)ϕ(t)ψ(t) | Mean-field equation of the rate of incidence | |
nc(t) | Number of new cases at time t | |
λ(t) | Rate of Incidence (rate of the Poisson process) | |
η | Fluctuations about the Rate of Incidence steady state | |
Ext | Extinction Simulations (social-distancing & vaccination) | |
Emg | Emergence Simulations | |
Fix | Simulations with fixed parameters (null) |
values in braces directs to the model number which was implemented at that value. Superscript 1: SIS with social distancing; superscript 2: SIS with vaccination; superscript 3: SIS emergence. Parameters without braces are shared amongst all models.