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. 2014 Apr 24;24(2):023108. doi: 10.1063/1.4872177

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© 2014 AIP Publishing LLC

1054-1500/2014/24(2)/023108/8/$30.00

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FIG. 6. — The fraction of infected nodes in a population I(t) as a function of time in the same BA scale-free network with N = 2000 for different initial infection conditions: (a) $I (0) = 1 %$ ; (b) $I (0) = 5 %$ . The simulation is obtained by taking the average over 100 epidemic dynamics. Other parameters: $δ = 1, γ = 0.5, β = 0.03$ , and c = 30. This figure shows that the deviation between them can be reduced by increasing the initial infection density.