### Ranking of Nodal Infection Probability in Susceptible-Infected-Susceptible Epidemic.

*Ontology highlight*

**ABSTRACT**: The prevalence, which is the average fraction of infected nodes, has been studied to evaluate the robustness of a network subject to the spread of epidemics. We explore the vulnerability (infection probability) of each node in the metastable state with a given effective infection rate ?. Specifically, we investigate the ranking of the nodal vulnerability subject to a susceptible-infected-susceptible epidemic, motivated by the fact that the ranking can be crucial for a network operator to assess which nodes are more vulnerable. Via both theoretical and numerical approaches, we unveil that the ranking of nodal vulnerability tends to change more significantly as ? varies when ? is smaller or in Barabási-Albert than Erd?s-Rényi random graphs.

**SUBMITTER: **Qu B

**PROVIDER: **S-EPMC5569095 | BioStudies | 2017-01-01T00:00:00Z

**REPOSITORIES: ** biostudies

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