Mathematical appraisal of SARS-CoV-2 Omicron epidemic outbreak in unprecedented Shanghai lockdown.

Mathematical appraisal of SARS-CoV-2 Omicron epidemic outbreak in unprecedented Shanghai lockdown.
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上海史无前例的封锁期间 SARS-CoV-2 Omicron 疫情暴发的数学评估

DOI:
10.3389/fmed.2022.1021560
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发表时间:
2022
影响因子:
3.9
通讯作者:
--
中科院分区:
医学3区
文献类型:
--
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SARS-CoV-2 Omicron疫情正在上海持续,上海拥有2500万人口。在这里,我们提出了一个新的数学模型来评估Omicron传播和零COVID战略。我们的模型提供了重要的参数,平均检疫比,从被感染到被检测为阳性的检测间隔,和传播系数,以更好地了解流行病的进展。此外,我们发现,一个相对准确的长期预测的关键是要考虑的变化/放宽参数的基础上灵活执行的检疫政策。这使我们能够提出估计可能在5月下旬进行的结束阶段的参数和结果的标准。总之,该模型有助于在中国严格的零冠状病毒政策下对SARS-CoV-2 Omicron疫情进行正确的数学评估。
The SARS-CoV-2 Omicron outbreak is ongoing in Shanghai, home to 25 million population. Here, we presented a novel mathematical model to evaluate the Omicron spread and Zero-COVID strategy. Our model provided important parameters, the average quarantine ratio, the detection interval from being infected to being tested positive, and the spreading coefficient to understand the epidemic progression better. Moreover, we found that the key to a relatively accurate long-term forecast was to take the variation/relaxation of the parameters into consideration based on the flexible execution of the quarantine policy. This allowed us to propose the criteria for estimating the parameters and outcome for the ending stage that is likely to take place in late May. Altogether, this model helped to give a correct mathematical appraisal of the SARS-CoV-2 Omicron outbreak under the strict Zero-COVID policy in China.
DOI: 10.1126/science.286.5439.509
发表时间: 1999-10-15
期刊: SCIENCE
影响因子: 56.9
作者:
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