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A network-patch methodology for adapting agent-based models for directly transmitted disease to mosquito-borne disease

机译:一种网络补丁方法,用于直接调整基于代理的模型   将疾病传染给蚊子传播的疾病

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摘要

Mosquito-borne diseases cause significant public health burden, mostly intropical and sub-tropical regions, and are widely emerging or re-emerging inareas where previously absent. Understanding, predicting, and mitigating thespread of mosquito-borne disease in diverse populations and geographies areongoing modeling challenges. We propose a hybrid network-patch model for thespread of mosquito-borne pathogens that accounts for the movement ofindividuals through mosquito habitats and responds to environmental factorssuch as rainfall and temperature. Our approach extends the capabilities ofexisting agent-based models for individual movement developed to predict thespread of directly transmitted pathogens in populations. To extend tomosquito-borne disease, agent-based models are coupled with differentialequations representing `clouds' of mosquitoes in geographic patches thataccount for mosquito ecology, including heterogeneity in mosquito density,emergence rates, and extrinsic incubation period. We illustrate the method byadapting an agent-based model for human movement across a network tomosquito-borne disease. We investigated the importance of heterogeneity inmosquito population dynamics and host movement on pathogen transmission,motivating the utility of detailed models of individual behavior. We observedthat the total number of infected people is greater in heterogeneous patchmodels with one high risk patch and high or medium human movement than it wouldbe in a random mixing homogeneous model. Our hybrid agent-based/differentialequation model is able to quantify the importance of the heterogeneity inpredicting the spread and invasion of mosquito-borne pathogens. Mitigationstrategies can be more effective when guided by realistic models created byextending the capabilities of existing agent-based models to includevector-borne diseases.
机译:蚊媒疾病会给公共卫生带来沉重负担,大部分是热带地区和亚热带地区,并且在以前不存在的地区广泛出现或重新出现。理解,预测和缓解蚊子传播疾病在不同人群和地区的传播正在挑战建模挑战。我们为蚊子传播的病原体的传播提出了一种混合网络补丁模型,该模型解释了个体在蚊子栖息地中的移动情况,并对降雨和温度等环境因素做出了响应。我们的方法扩展了现有的基于代理的个体运动模型的功能,该模型用于预测直接传播的病原体在人群中的传播。为了扩展由蚊子传播的疾病,基于代理的模型与表示蚊子生态学的地理区域中蚊子“云”的微分方程相结合,包括蚊子密度,出苗率和外在潜伏期的异质性。我们通过适应基于蚊子传播疾病的网络中人类运动的基于代理的模型来说明该方法。我们调查了异质性蚊虫种群动态和宿主运动对病原体传播的重要性,从而激发了详细的个体行为模型的实用性。我们观察到,在具有一个高风险补丁和高或中等人员移动性的异构补丁模型中,受感染的人数要比在随机混合同类模型中的要多。我们基于杂合剂的/差分方程模型能够量化异质性在预测蚊媒病原体扩散和入侵方面的重要性。在通过将现有基于代理的模型的功能扩展到包括媒介传播的疾病而创建的现实模型的指导下,缓解策略可以更加有效。

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