Table 1. Baseline parameter values for SEIR-type infection.

Parameter	Meaning	Value	Reference
	Population size	5,000
	Initial number of individuals inoculated with smallpox	10
	Mean neighborhood size	10
	Probability of node-to-node transmission	0.02 day−1	[50]
	Perceived probability of node-to-node transmission	0.02 day−1	[50]
	Mean duration of latent period	12 days	[51]
	Variance of latent period	4 days2	[51]
	Mean duration of infectious period	19 days	[51]
	Variance of infectious period	4 days2	[51]
	Probability of death due to infection	0.3	[52],[53]
	Probability of death due to vaccine-related complications	0.001	[36]
	Vaccine efficacy	0.95	[50]
	Payoff for individuals with continued susceptibility	40 life-years	[30]
	Payoff for individuals with lifelong immunity	40 life-years	[30]