Effects of Levy Flights Mobility Pattern on Epidemic Spreading under Limited Energy Constraint

Details Effects of Levy Flights Mobility Pattern on Epidemic Spreading under Limited Energy Constraint Effects of Levy Flights Mobility Pattern on Epidemic Spreading under Limited Energy Constraint

2010-02-05

arxiv.org/abs/1002.1332v1

Physics

Physics and Society

5pages,8figures

Scientific paper

Recently, many empirical studies uncovered that animal foraging, migration and human traveling obey Levy flights with an exponent around -2. Inspired by the deluge of H1N1 this year, in this paper, the effects of Levy flights' mobility pattern on epidemic spreading is studied from a network perspective. We construct a spatial weighted network which possesses Levy flight spatial property under a restriction of total energy. The energy restriction is represented by the limitation of total travel distance within a certain time period of an individual. We find that the exponent -2 is the epidemic threshold of SIS spreading dynamics. Moreover, at the threshold the speed of epidemics spreading is highest. The results are helpful for the understanding of the effect of mobility pattern on epidemic spreading.

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