arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.06297q-bio.PEphysics.soc-ph
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用SEIR模型对阿根廷COVID-19流行病的数值模拟

A numerical simulation of the COVID-19 epidemic in Argentina using the SEIR model

Juan E. Santos, Jose' M. Carcione, Gabriela B. Savioli, Patricia M. Gauzellino, Alejandro Ravecca, Alfredo Moras

摘要:

一场由新型冠状病毒引起的大流行病在全球蔓延,影响到了阿根廷。我们实施了一个SEIR模型来分析疾病在布宜诺斯艾利斯和邻近城市的演变。使用官方报告的伤亡人数校准模型参数。由于无限的解决方案尊重的数据,我们显示不同的情况。在所有这些地区,繁殖率$R_0$在早期封锁后下降,但随后上升,可能是由于人口密集的贫民窟的传染增加。因此,必须通过应用控制策略来扭转$R_0$的这种增长趋势,以避免大量的感染和死亡个体。该模型提供了一个有效的过程来估计流行病参数(死亡率,传播概率,感染和潜伏期)和监测控制措施在流行病的演变。

英文摘要:

A pandemic caused by a new coronavirus has spread worldwide, affecting Argentina. We implement an SEIR model to analyze the disease evolution in Buenos Aires and neighbouring cities. The model parameters are calibrated using the number of casualties officially reported. Since infinite solutions honour the data, we show different cases. In all of them the reproduction ratio $R_0$ decreases after early lockdown, but then raises, probably due to an increase in contagion in highly populated slums. Therefore it is mandatory to reverse this growing trend in $R_0$ by applying control strategies to avoid a high number of infectious and dead individuals. The model provides an effective procedure to estimate epidemic parameters (fatality rate, transmission probability, infection and incubation periods) and monitor control measures during the epidemic evolution.

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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