A PERIODIC ROSS-MACDONALD MODEL IN A PATCHY ENVIRONMENT.

A PERIODIC ROSS-MACDONALD MODEL IN A PATCHY ENVIRONMENT.
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DOI:
10.3934/dcdsb.2014.19.3133
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发表时间:
2014-12-01
期刊:
Discrete and continuous dynamical systems. Series B
影响因子:
--
通讯作者:
Ruan S
Ruan S
中科院分区:
其他
文献类型:
--
作者:
Gao D;Lou Y;Ruan S

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在经典的Ross-Macdonald模型的基础上,本文提出了一个周期疟疾模型,该模型考虑了时间和空间异质性对疾病传播的影响。时间异质性通过假设一些模型系数是时间周期性的来描述,而空间异质性通过使用多斑块结构并假设个体在斑块之间旅行来建模。我们计算了基本再生数,并证明了无病周期解是全局渐近稳定的,如果或正周期解是全局渐近稳定的,如果。数值模拟结果证实了分析结果,并探讨了旅行控制对疾病流行的影响。
Based on the classical Ross-Macdonald model, in this paper we propose a periodic malaria model to incorporate the effects of temporal and spatial heterogeneity on disease transmission. The temporal heterogeneity is described by assuming that some model coefficients are time-periodic, while the spatial heterogeneity is modeled by using a multi-patch structure and assuming that individuals travel among patches. We calculate the basic reproduction number and show that either the disease-free periodic solution is globally asymptotically stable if or the positive periodic solution is globally asymptotically stable if . Numerical simulations are conducted to confirm the analytical results and explore the effect of travel control on the disease prevalence.
降雨量变化导致中国安徽省疟疾卷土重来
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