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arXiv 2009.02513q-bio.PEmath.OC
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最优流行病缓解的控制理论方法

A control theory approach to optimal pandemic mitigation

Prakhar Godara, Stephan Herminghaus, Knut M. Heidemann

摘要:

在齐次非传染性-感染-恢复(SIR)模型的框架下,我们使用控制理论的方法来确定最优的大流行缓解策略。我们得出了实现群体免疫的相当一般的条件,同时最大限度地减少了引入社会控制措施(如关闭学校,社交距离,封锁等)所产生的成本,受感染人口比例不得超过与公共卫生系统能力相对应的某个最大值。最优性推导和验证变分和数值方法的一些模型的成本函数。恢复后的免疫反应衰减的影响被考虑在内,并讨论了基于群体免疫的策略的可行性。

英文摘要:

In the framework of homogeneous susceptible-infected-recovered (SIR) models, we use a control theory approach to identify optimal pandemic mitigation strategies. We derive rather general conditions for reaching herd immunity while minimizing the costs incurred by the introduction of societal control measures (such as closing schools, social distancing, lockdowns, etc.), under the constraint that the infected fraction of the population does never exceed a certain maximum corresponding to public health system capacity. Optimality is derived and verified by variational and numerical methods for a number of model cost functions. The effects of immune response decay after recovery are taken into account and discussed in terms of the feasibility of strategies based on herd immunity.

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