摘要
2021年7月,南京市爆发由德尔塔变异毒株引起的新型冠状病毒肺炎疫情(COVID-19)。依据南京市卫生健康委员会公布的实际数据,建立符合疫情发展的时间依赖COVID-19传播动力学模型,将实时数据应用于模型参数估计和有效再生数计算,分析和评估了此次疫情采取的隔离防控措施和核酸检测强度。结论表明:隔离力度和核酸检测强度对疫情防控有重要影响。该研究结果在一定程度上促进了新型冠状病毒肺炎传播动力学建模与分析工作的研究,对未来应对突发性传染病有一定借鉴意义。
In July 2021,a Corona Virus Disease 2019(COVID-19)caused by Delta mutant virus broke out in Nanjing.Based on the actual data published by Nanjing Health Commission,we propose a time-dependent COVID-19 epidemic model.Applying the data to estimate the parameters of the model and calculate the effective reproduction number,and then the quarantine and prevention measures and the intensity of nucleic acid test are analyzed and evaluated.The conclusion shows that the intensity of quarantine and nucleic acid test have an important impact on prevention and control of epidemic.The results of this study promote the research on the transmission dynamics modeling and analysis of COVID-19 to a certain extent,and have certain reference significance for dealing with sudden infectious diseases in the future.
作者
王凯
李慧霞
李云
赵洪涌
WANG Kai;LI Huixia;LI Yun;ZHAO Hongyong(School of Mathematics,Nanjing University of Aeronautics and Astronautics,Nanjing 211106;Guangzhou Center for Applied Mathematics,Guangzhou University,Guangzhou 510006;Key Laboratory of Mathematical Modelling and High Performance Computing of Air Vehicles(NUAA),MIIT,Nanjing 211106)
出处
《工程数学学报》
CSCD
北大核心
2024年第2期217-231,共15页
Chinese Journal of Engineering Mathematics
基金
国家自然科学基金(11971013,12101309)
中国博士后科学基金(2023M740801,2021M691577)
国家资助博士后研究人员计划(GZC20230589)
江苏省研究生科研与实践创新计划项目基金(KYCX200169).
