Interdisciplinary Perspectives on Infectious Diseases / 2011 / Article / Fig 3

Research Article

Pathogens, Social Networks, and the Paradox of Transmission Scaling

Figure 3

Scaling of transmission on Poisson (a, b), exponential (c, d), and scale-free (e, f) networks. Left-hand panels are the mean realized per capita transmission rate, , plotted against network size. Right-hand panels are the mean number of infections per edge between susceptible and infected nodes. Solid lines indicate a constant mean number of contacts for all population sizes. Dashed lines indicate a mean number of contacts that increase proportional to the square root of population size. Dotted lines indicate a mean number of contacts that increase linearly with the population size. Vertical bars give the standard deviation in observations from 30 simulated networks.
(a) Poisson
(b) Poisson
(c) Exponential
(d) Exponential
(e) Power law
(f) Power law

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