Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/19175
Title: Hub nodes inhibit the outbreak of epidemic under voluntary vaccination
Authors: Zhang, H
Zhang, J
Zhou, C
Small, M
Wang, B
Issue Date: 2010
Publisher: IOP Publishing Ltd
Source: New journal of physics, 2010, v. 12, 23015 How to cite?
Journal: New Journal of Physics 
Abstract: It is commonly believed that epidemic spreading on scale-free networks is difficult to control and that the disease can spread even with a low infection rate, lacking an epidemic threshold. In this paper, we study epidemic spreading on complex networks under the framework of game theory, in which a voluntary vaccination strategy is incorporated. In particular, individuals face the 'dilemma' of vaccination: they have to decide whether or not to vaccinate according to the trade-off between the risk and the side effects or cost of vaccination. Remarkably and quite excitingly, we find that disease outbreak can be more effectively inhibited on scale-free networks than on random networks. This is because the hub nodes of scale-free networks are more inclined to take self-vaccination after balancing the pros and cons. This result is encouraging as it indicates that real-world networks, which are often claimed to be scale free, can be favorably and easily controlled under voluntary vaccination. Our work provides a way of understanding how to prevent the outbreak of diseases under voluntary vaccination, and is expected to provide valuable information on effective disease control and appropriate decision-making.
URI: http://hdl.handle.net/10397/19175
DOI: 10.1088/1367-2630/12/2/023015
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