Coevolution of pathogens and cultural practices: A new look at behavioral heterogeneity in epidemics
Coevolution of pathogens and cultural practices: A new look at behavioral heterogeneity in epidemics
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DOI：
10.1006/tpbi.2002.1585
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发表时间：
2002-09-01
影响因子：
1.4
通讯作者：
Feldman, MW
中科院分区：
文献类型：
--
作者：
Tanaka, MM;Kumm, J;Feldman, MW
种群内的异质性对传染病传播的影响一直是最近研究的焦点。这种异质性可以是例如空间的、时间的或行为的。通常，包含种群细分的模型假定个体被永久地分配到由子种群代表的给定行为状态。我们考虑了一个简单的流行病模型，其中一个行为特征影响疾病的传播，并且这种特征可能作为社会互动的结果在宿主之间传递。这就造成了一种情况，不同的行为特征和疾病状态的频率以及它们的关联可能会随着时间的推移而变化。我们考虑了文化传播特征对疾病最初传播标准的影响。我们还探索了文化特征对病原体动态的响应进化，并展示了减少传播的行为特征进化的一些条件。我们发现，增加感染风险的行为，当它们天生受到青睐或相似行为之间有足够的接触聚集时，也会演变。(C)2002年埃尔塞维尔科学公司(美国)。
The effect of heterogeneity within populations on the spread of infectious diseases has been a recent focus of research. Such heterogeneity may be, for example, spatial, temporal or behavioral in form. Generally, models that include population subdivision have assumed that individuals are permanently assigned to given behavioral states represented by the subpopulations. We consider a simple epidemic model in which a behavioral trait affects disease transmission, and this trait may be transferred among hosts as a consequence of social interaction. This creates a situation where the frequencies of different behavioral traits and disease states as well as their associations may change over time. We consider the impact of the culturally transmitted trait on the criterion for initial spread of the disease. We also explore the evolution of cultural traits in response to pathogen dynamics and show some conditions under which behavioral traits that reduce transmission evolve. We find that behaviors increasing the risk of infection can also evolve when they are inherently favored or when there is sufficient clustering of contacts between like behaviors. (C) 2002 Elsevier Science (USA).