Assessing node risk and vulnerability in epidemics on networks

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Abstract

Which nodes are most vulnerable to an epidemic spreading through a network, and which carry the highest risk of causing a major outbreak if they are the source of the infection? Here we show how these questions can be answered to good approximation using the cavity method. Several curious properties of node vulnerability and risk are explored: some nodes are more vulnerable than others to weaker infections, yet less vulnerable to stronger ones; a node is always more likely to be caught in an outbreak than it is to start one, except when the disease has a deterministic lifetime; the rank order of node risk depends on the details of the distribution of infectious periods.
Original languageEnglish
Pages (from-to)28005
JournalEPL (Europhysics Letters)
Volume109
Issue number2
DOIs
Publication statusPublished - Jan 2015

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vulnerability
infectious diseases
life (durability)
cavities
approximation

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Assessing node risk and vulnerability in epidemics on networks. / Rogers, T.

In: EPL (Europhysics Letters), Vol. 109, No. 2, 01.2015, p. 28005.

Research output: Contribution to journalArticle

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