On the Transmission of COVID-19 and Its Prevention and Control Management

The spread of an epidemic is a typical public emergency and also one of the major problems that humans need to tackle in the 21st century. Therefore, the research on the spread, prevention, and control of epidemics is quite an essential task. This paper first briefly described and analyzed the devel...

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Main Author: Pinhong Zeng
Format: Article
Language:English
Published: Hindawi Limited 2021-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2021/9629816
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author Pinhong Zeng
author_facet Pinhong Zeng
author_sort Pinhong Zeng
collection DOAJ
description The spread of an epidemic is a typical public emergency and also one of the major problems that humans need to tackle in the 21st century. Therefore, the research on the spread, prevention, and control of epidemics is quite an essential task. This paper first briefly described and analyzed the development of COVID-19 and then introduced the basic epidemic models and idealized the population in the epidemic area by dividing them into four categories (Classes S, E, I, and R). After that, it set the relevant parameters of the basic SEIR model and the modified one and worked out the relevant differential equations and iterative equations. According to the feature of the epidemic situation and the changes in the number of contacts in different units of time, the epidemic data were substituted into the iterative equations for data fitting with an R Package. Then, analysis was performed on the epidemiological features such as the transmission time and epidemic peak and the epidemic trend was evaluated. Finally, sensitivity analysis was conducted on the parameters (government control and recovery rate), and the results showed that measures such as government restrictions on travel (reducing the contacts between virus carriers and susceptible persons) can effectively control the scale of the outbreak.
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spelling doaj.art-4b9f3e76be344781bb2b4679b8d5b1152022-12-22T04:05:41ZengHindawi LimitedDiscrete Dynamics in Nature and Society1026-02261607-887X2021-01-01202110.1155/2021/96298169629816On the Transmission of COVID-19 and Its Prevention and Control ManagementPinhong Zeng0Faculty of Economics and Business Administration, Yibin University, Yibin 644000, ChinaThe spread of an epidemic is a typical public emergency and also one of the major problems that humans need to tackle in the 21st century. Therefore, the research on the spread, prevention, and control of epidemics is quite an essential task. This paper first briefly described and analyzed the development of COVID-19 and then introduced the basic epidemic models and idealized the population in the epidemic area by dividing them into four categories (Classes S, E, I, and R). After that, it set the relevant parameters of the basic SEIR model and the modified one and worked out the relevant differential equations and iterative equations. According to the feature of the epidemic situation and the changes in the number of contacts in different units of time, the epidemic data were substituted into the iterative equations for data fitting with an R Package. Then, analysis was performed on the epidemiological features such as the transmission time and epidemic peak and the epidemic trend was evaluated. Finally, sensitivity analysis was conducted on the parameters (government control and recovery rate), and the results showed that measures such as government restrictions on travel (reducing the contacts between virus carriers and susceptible persons) can effectively control the scale of the outbreak.http://dx.doi.org/10.1155/2021/9629816
spellingShingle Pinhong Zeng
On the Transmission of COVID-19 and Its Prevention and Control Management
Discrete Dynamics in Nature and Society
title On the Transmission of COVID-19 and Its Prevention and Control Management
title_full On the Transmission of COVID-19 and Its Prevention and Control Management
title_fullStr On the Transmission of COVID-19 and Its Prevention and Control Management
title_full_unstemmed On the Transmission of COVID-19 and Its Prevention and Control Management
title_short On the Transmission of COVID-19 and Its Prevention and Control Management
title_sort on the transmission of covid 19 and its prevention and control management
url http://dx.doi.org/10.1155/2021/9629816
work_keys_str_mv AT pinhongzeng onthetransmissionofcovid19anditspreventionandcontrolmanagement