From: Age groups and spread of influenza: implications for vaccination strategy
Parameter | Description | Baseline value | Source |
---|---|---|---|
σ | mean vaccine waning rate | 0 | |
1/γ | mean incubation period of exposed individuals | 1.48 | [21] |
1/γ 1 | mean time to onset of those who had been quarantined | NA | |
ρ | mean recovery rate of untreated infectives | 1/2.85 | [19] |
ρ V | mean recovery rate of vaccinated infectives with ρ V ≥ ρ | 1/2.85 | [19] |
ρ 2 | mean recovery rate of asymptomatic infectives | 1/2.85 | [19] |
ω | mean immune waning rate | 0 | |
ϵ | migration rate of the population | 0 | |
ϵ 1 | migration rate of symptomatic infectives | 0 | |
θ | immigration rate of the population | 0 | |
θ 1 | immigration rate of symptomatic infectives | 0 | |
q | quarantine rate of unvaccinated exposed individuals | 0 | |
q V | quarantine rate of vaccinated exposed individuals | 0 | |
1-ϕ | home withdrawal rate of untreated symptomatic infectives | 0 | |
1-ϕ1 | home withdrawal rate of all "well" individuals | 0 | |
τ | reduction in infectivity of unvaccinated pre-symptomatic infectives | 0.4 | |
τ 1 | reduction in infectivity of asymptomatic infectives | 0.5 | [15] |
τ 2 | reduction factor in contact due to hospital isolation | 0 | |
κ | reduction in infectivity of vaccinated infectives | 0.5 | [15] |