Abstract
In the last decades, due to the appearance of many diseases such as SARS and
the H1N1 flu strain, many authors studied the impact of the disease spreading
in the evolution of the infected individuals using the
susceptible-infected-recovered model. However, few authors focused on the
temporal behavior of the susceptible individuals. Recently it was found that in
an epidemic spreading, the dynamic of the size of the biggest susceptible
cluster can be explained by a temporal node void percolation Valdez et al PLoS
ONE 7, e44188 (2012). It was shown that the size of the biggest susceptible
cluster is the order parameter of this temporal percolation where the control
parameter can be related to the number of links between susceptible individuals
at a given time. As a consequence, there is a critical time at which the
biggest susceptible cluster is destroyed. In this paper, we study the
susceptible-infected-recovered model in an adaptive network where an
intermittent social distancing strategy is applied. In this adaptive model a
susceptible individual breaks his contact with the infected neighbor with
probability \$\sigma\$ and after \$t\_b\$ time units the contact is restored. Using
an edge-based compartmental model and percolation theory, we obtain the
evolution equations of the fraction susceptible individuals in the susceptible
biggest component. We show that when this strategy is applied, the spreading of
the disease slows down, protecting the biggest susceptible cluster by
increasing the critical time. We also study the strategy in a more realistic
situation when it is applied after a macroscopic fraction of the population is
infected. We find that in this case, the strategy can still halt the epidemic
spreading. Our theoretical results are fully supported by intensive
simulations.
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