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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]

Ï„

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.