Using an age-structured COVID-19 epidemic model and data to model virulence evolution in Wuhan, China

COVID-19 is a disease caused by infection with the virus 2019-nCoV, a single-stranded RNA virus. During the infection and transmission processes, the virus evolves and mutates rapidly, though the disease has been quickly controlled in Wuhan by ‘Fangcang’ hospitals. To model the virulence evolution,...

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Main Authors: Xi-Chao Duan, Xue-Zhi Li, Maia Martcheva, Sanling Yuan
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:Journal of Biological Dynamics
Subjects:
Online Access:http://dx.doi.org/10.1080/17513758.2021.2020916
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author Xi-Chao Duan
Xue-Zhi Li
Maia Martcheva
Sanling Yuan
author_facet Xi-Chao Duan
Xue-Zhi Li
Maia Martcheva
Sanling Yuan
author_sort Xi-Chao Duan
collection DOAJ
description COVID-19 is a disease caused by infection with the virus 2019-nCoV, a single-stranded RNA virus. During the infection and transmission processes, the virus evolves and mutates rapidly, though the disease has been quickly controlled in Wuhan by ‘Fangcang’ hospitals. To model the virulence evolution, in this paper, we formulate a new age structured epidemic model. Under the tradeoff hypothesis, two special scenarios are used to study the virulence evolution by theoretical analysis and numerical simulations. Results show that, before ‘Fangcang’ hospitals, two scenarios are both consistent with the data. After ‘Fangcang’ hospitals, Scenario I rather than Scenario II is consistent with the data. It is concluded that the transmission pattern of COVID-19 in Wuhan obey Scenario I rather than Scenario II. Theoretical analysis show that, in Scenario I, shortening the value of L (diagnosis period) can result in an enormous selective pressure on the evolution of 2019-nCoV.
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spelling doaj.art-c20c69b88fa24b5e844ef253696b9f1e2022-12-21T21:19:30ZengTaylor & Francis GroupJournal of Biological Dynamics1751-37581751-37662022-12-01161142810.1080/17513758.2021.20209162020916Using an age-structured COVID-19 epidemic model and data to model virulence evolution in Wuhan, ChinaXi-Chao Duan0Xue-Zhi Li1Maia Martcheva2Sanling Yuan3University of Shanghai for Science and TechnologyHenan Normal UniversityUniversity of FloridaUniversity of Shanghai for Science and TechnologyCOVID-19 is a disease caused by infection with the virus 2019-nCoV, a single-stranded RNA virus. During the infection and transmission processes, the virus evolves and mutates rapidly, though the disease has been quickly controlled in Wuhan by ‘Fangcang’ hospitals. To model the virulence evolution, in this paper, we formulate a new age structured epidemic model. Under the tradeoff hypothesis, two special scenarios are used to study the virulence evolution by theoretical analysis and numerical simulations. Results show that, before ‘Fangcang’ hospitals, two scenarios are both consistent with the data. After ‘Fangcang’ hospitals, Scenario I rather than Scenario II is consistent with the data. It is concluded that the transmission pattern of COVID-19 in Wuhan obey Scenario I rather than Scenario II. Theoretical analysis show that, in Scenario I, shortening the value of L (diagnosis period) can result in an enormous selective pressure on the evolution of 2019-nCoV.http://dx.doi.org/10.1080/17513758.2021.20209162019-ncovage structured modelcovid-19virulence evolution‘fangcang’ hospitals
spellingShingle Xi-Chao Duan
Xue-Zhi Li
Maia Martcheva
Sanling Yuan
Using an age-structured COVID-19 epidemic model and data to model virulence evolution in Wuhan, China
Journal of Biological Dynamics
2019-ncov
age structured model
covid-19
virulence evolution
‘fangcang’ hospitals
title Using an age-structured COVID-19 epidemic model and data to model virulence evolution in Wuhan, China
title_full Using an age-structured COVID-19 epidemic model and data to model virulence evolution in Wuhan, China
title_fullStr Using an age-structured COVID-19 epidemic model and data to model virulence evolution in Wuhan, China
title_full_unstemmed Using an age-structured COVID-19 epidemic model and data to model virulence evolution in Wuhan, China
title_short Using an age-structured COVID-19 epidemic model and data to model virulence evolution in Wuhan, China
title_sort using an age structured covid 19 epidemic model and data to model virulence evolution in wuhan china
topic 2019-ncov
age structured model
covid-19
virulence evolution
‘fangcang’ hospitals
url http://dx.doi.org/10.1080/17513758.2021.2020916
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