Skip to main content

Table 1 Baseline parameter values for SEIR-type infection.

From: A simulation analysis to characterize the dynamics of vaccinating behaviour on contact networks

Parameter Meaning Value Reference
N Population size 5000 assumption
I 0 Initial number of individuals inoculated with smallpox 10 assumption
ν Mean node degree 10 assumption, Ref. [64]
τ Scaling constant for probability of infection from neighbours' neighbours 0.2 assumption
β Probability of node-to-node transmission 0.02 day-1 Ref. [43]
β perc Perceived probability of node-to-node transmission 0.02 day-1 Ref. [43]
1/σ Mean duration of latent period 12 days Ref. [65]
V σ Variance of latent period 4 days2 Ref. [65]
1/γ Mean duration of infectious period 19 days Ref. [65]
V γ Variance of infectious period
(original model)
4 days2 Ref. [65]
V ι Variance of infectious period
(extended model)
4 days2 Ref. [65]
V κ Variance of vaccine latent period 4 days2 Ref. [65]
d inf Probability of death due to infection 0.3 Ref. [66]
d vac Probability of death due to vaccine-related complications 0.001 assumption, Ref. [52]
ϵ Vaccine efficacy 0.95 Ref. [43]
α Payoff for individuals with continued susceptibility 40 life-years Ref. [67]
L Payoff for individuals with lifelong immunity 40 life-years Ref. [67]
  1. Parameter values selected are similar to those used in Ref. [49], and are intended to represent smallpox-type infections with high case fatality rates where transmission is dominated by close contact transmission to social contacts (e.g. household transmission, nosocomial transmission). Ref. [49] investigates the impact of variations in the node degree ν.