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. 2013 Mar 6;8(3):e57878. doi: 10.1371/journal.pone.0057878

Table 1. SEIR model with demographic stochasticity.

Parameters
S = number of susceptible individuals
E = number of exposed/incubating individuals
I = number of infectious individuals
R = number of removed/recovered/dead individuals
N = total population size where S+E+I+R = 200 individuals
σ = 1/incubation period, where the incubation period is 22.3 days
γ = 1/infectious period, where the infectious period is 3.7 days
m = the number of stages (compartments) used to model the exposed period, where m = 1 or 3
n = the number of stages (compartments) used to model the infectious period, where n = 1 or 3
Inline graphic, where R 0 = 1.2 or 1.8