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arXiv 2101.03369q-bio.PEcs.NAmath.NA
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SUIHTER:一种新的COVID-19的数学模型。应用于意大利第二次流行病爆发的分析

SUIHTER: A new mathematical model for COVID-19. Application to the analysis of the second epidemic outbreak in Italy

Nicola Parolini, Luca Dede', Paola F. Antonietti, Giovanni Ardenghi, Andrea Manzoni, Edie Miglio, Andrea Pugliese, Marco Verani, Alfio Quarteroni

摘要:

COVID-19疫情是上个世纪影响人类的一长串大流行病中的最后一次。在本文中,我们提出了一个新的数学流行病学模型命名为SUIHTER从七个隔间的名称,它包括:易感未感染的个人(S),未检测到的(无症状和有症状)感染(U),隔离(I),住院(H),威胁(T),灭绝(E)和恢复(R)。一个合适的参数校准,是基于最小二乘法和马尔可夫链蒙特卡罗(MCMC)方法的结合使用,提出了再现过去的历史,在意大利的流行病,出现在2月下旬,至今仍在进行中,并验证SUIHTER在其预测能力。新模型的一个显著特点是,它允许在模型分区和意大利民防局每天提供的数据之间采用一对一的校准策略。然后将新模型应用于意大利疫情的分析,重点是2020年秋季出现的第二次疫情。特别是,我们表明,流行病学模型SUIHTER可以适当地用于在国家一级进行情景分析的预测方式。

英文摘要:

The COVID-19 epidemic is the last of a long list of pandemics that have affected humankind in the last century. In this paper, we propose a novel mathematical epidemiological model named SUIHTER from the names of the seven compartments that it comprises: susceptible uninfected individuals (S), undetected (both asymptomatic and symptomatic) infected (U), isolated (I), hospitalized (H), threatened (T), extinct (E), and recovered (R). A suitable parameter calibration that is based on the combined use of least squares method and Markov Chain Monte Carlo (MCMC) method is proposed with the aim of reproducing the past history of the epidemic in Italy, surfaced in late February and still ongoing to date, and of validating SUIHTER in terms of its predicting capabilities. A distinctive feature of the new model is that it allows a one-to-one calibration strategy between the model compartments and the data that are daily made available from the Italian Civil Protection. The new model is then applied to the analysis of the Italian epidemic with emphasis on the second outbreak emerged in Fall 2020. In particular, we show that the epidemiological model SUIHTER can be suitably used in a predictive manner to perform scenario analysis at national level.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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