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      Epidemic spreading in scale-free networks

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          Abstract

          The Internet, as well as many other networks, has a very complex connectivity recently modeled by the class of scale-free networks. This feature, which appears to be very efficient for a communications network, favors at the same time the spreading of computer viruses. We analyze real data from computer virus infections and find the average lifetime and prevalence of viral strains on the Internet. We define a dynamical model for the spreading of infections on scale-free networks, finding the absence of an epidemic threshold and its associated critical behavior. This new epidemiological framework rationalize data of computer viruses and could help in the understanding of other spreading phenomena on communication and social networks.

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          The application of epidemiology to computer viruses

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            Author and article information

            Journal
            20 October 2000
            Article
            10.1103/PhysRevLett.86.3200
            cond-mat/0010317
            406684d6-859f-436b-819d-9bc7403d8e3b
            History
            Custom metadata
            Phys. Rev. Lett. 86, 3200 (2001)
            13 pages, RevTeX style, 3 EPS figures
            cond-mat.stat-mech

            Condensed matter
            Condensed matter

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