Topological and Historical Considerations for Infectious Disease Transmission among Injecting Drug Users in Bushwick, Brooklyn (USA).
Topological and Historical Considerations for Infectious Disease Transmission among Injecting Drug Users in Bushwick, Brooklyn (USA).
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DOI：
10.4236/wja.2013.31001
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发表时间：
2013-03-01
期刊：
影响因子：
--
通讯作者：
Khan B
中科院分区：
文献类型：
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作者：
Dombrowski K;Curtis R;Friedman S;Khan B
最近物理学家对社交网络和疾病传播因素的兴趣引发了关于性网络中度分布拓扑的争论。社会网络研究者一直对巴拉巴西-阿尔伯特的“无标度”方法持批评态度，并在很大程度上拒绝了该模型所基于的偏好依恋，即“富人越来越富”的假设。相反，对性网络的研究指出了同性恋和当地性规范在决定程度分布以及疾病传播阈值方面的重要性。注射吸毒者（IDU）网络拓扑结构可能不同于新兴的性网络模型。对纽约布鲁克林IDU网络的度分布分析表明，它的拓扑结构与针对性网络讨论的生成树配置不同，而是具有相对较短的周期和高并发性。我们的研究结果表明，IDU网络确实在某些方面符合“无标度”拓扑结构，因此可能代表潜在感染的“水库”，尽管似乎很低的传输阈值。
Recent interest by physicists in social networks and disease transmission factors has prompted debate over the topology of degree distributions in sexual networks. Social network researchers have been critical of “scale-free” Barabasi-Albert approaches, and largely rejected the preferential attachment, “rich-get-richer” assumptions that underlie that model. Instead, research on sexual networks has pointed to the importance of homophily and local sexual norms in dictating degree distributions, and thus disease transmission thresholds. Injecting Drug User (IDU) network topologies may differ from the emerging models of sexual networks, however. Degree distribution analysis of a Brooklyn, NY, IDU network indicates a different topology than the spanning tree configurations discussed for sexual networks, instead featuring comparatively short cycles and high concurrency. Our findings suggest that IDU networks do in some ways conform to a “scale-free” topology, and thus may represent “reservoirs” of potential infection despite seemingly low transmission thresholds.