Complex social contagion makes networks more vulnerable to disease outbreaks.
Complex social contagion makes networks more vulnerable to disease outbreaks.
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DOI：
10.1038/srep01905
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发表时间：
2013
影响因子：
4.6
通讯作者：
Salathe, Marcel
中科院分区：
文献类型：
--
作者：
Campbell, Ellsworth;Salathe, Marcel
社会网络分析现在被广泛用于研究传染病传播的动力学。疫苗接种极大地阻断了疾病在接触网络上的传播，事实上，高疫苗接种率有可能完全阻止疾病的传播。在这里，我们建立在越来越多的证据基础上，这些证据表明，健康行为--比如接种疫苗和拒绝接种疫苗--可以通过一个需要社会强化的复杂传染过程在社交网络中传播。通过对健康行为和传染病传播进行网络模拟，我们发现在其他条件相同的情况下，健康行为传播的过程对疾病爆发动态具有非常强的影响。这种动态变化是由健康行为传播过程中出现的易感群体内部拓扑结构的差异造成的，而健康行为传播过程又取决于整个社会网络的拓扑结构。我们的研究结果指出了健康行为传播在预测和控制疾病爆发方面的重要性。
Social network analysis is now widely used to investigate the dynamics of infectious disease spread. Vaccination dramatically disrupts disease transmission on a contact network, and indeed, high vaccination rates can potentially halt disease transmission altogether. Here, we build on mounting evidence that health behaviors - such as vaccination, and refusal thereof - can spread across social networks through a process of complex contagion that requires social reinforcement. Using network simulations that model health behavior and infectious disease spread, we find that under otherwise identical conditions, the process by which the health behavior spreads has a very strong effect on disease outbreak dynamics. This dynamic variability results from differences in the topology within susceptible communities that arise during the health behavior spreading process, which in turn depends on the topology of the overall social network. Our findings point to the importance of health behavior spread in predicting and controlling disease outbreaks.
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