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A Cellular Automata Model For Chagas Disease

机译:南美锥虫病的细胞自动机模型

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Chagas disease is a major health concern in South and Central America. In the absence of vaccines and treatments, the only strategy to stop the epidemic is to control the population dynamics of the insect vectors transmitting parasites to humans. From both systems theory and epidemiological point of view, a proper modelling is the first need to develop an efficient control strategy. The purpose of this paper is to develop a spatio-temporal description of the vector population dynamics at the scale of a village. The proposed approach is based on cellular automata, which is a suitable framework to study the spatial spread phenomena. We established the concept of periodic spreadability in spatially distributed systems and use it to investigate the temporal variations of Chagas disease transmission risk in a village of the Yucatan peninsula, Mexico. This new epidemiological modelling approach provides a desirable tool to evaluate and improve the efficiency of current insecticide spraying strategies as well as to design alternative control strategies.
机译:南美锥虫病是南美和中美洲的主要健康问题。在没有疫苗和治疗的情况下,制止这种流行病的唯一策略是控制将寄生虫传播给人类的昆虫载体的种群动态。从系统理论和流行病学的角度来看,正确的建模是开发有效控制策略的首要条件。本文的目的是在村庄规模上发展媒介种群动态的时空描述。所提出的方法基于细胞自动机,它是研究空间扩散现象的合适框架。我们建立了在空间分布系统中周期性传播的概念,并用它来研究墨西哥尤卡坦半岛一个村庄的恰加斯病传播风险的时间变化。这种新的流行病学建模方法提供了一种理想的工具,可用于评估和提高当前杀虫剂喷洒策略的效率以及设计替代控制策略。

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