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Effect of incubation delay and pollution on the transmission dynamics of infectious disease

Effect of incubation delay and pollution on the transmission dynamics of infectious disease Emerging infectious diseases pose serious threat to human population. Studies suggest that there is correlation between population’s pollution status and emerging infectious diseases. We propose a delayed SIS model to examine the effects of environmental contamination on human health, which can lead to the spread of numerous diseases. A threshold parameter called basic reproduction number has been obtained for the system. Within the sight of time delay, stability analysis for equilibrium points has been obtained. The existence of Hopf bifurcation around endemic equilibrium point pertaining to time delay as a critical parameter is observed. Our study suggests that pollution can have detrimental effects on the spread of disease. Analytical results are supported by numerical simulations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ANNALI DELL UNIVERSITA DI FERRARA Springer Journals

Effect of incubation delay and pollution on the transmission dynamics of infectious disease

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References (33)

Publisher
Springer Journals
Copyright
Copyright © The Author(s) under exclusive license to Università degli Studi di Ferrara 2022
ISSN
0430-3202
eISSN
1827-1510
DOI
10.1007/s11565-022-00399-5
Publisher site
See Article on Publisher Site

Abstract

Emerging infectious diseases pose serious threat to human population. Studies suggest that there is correlation between population’s pollution status and emerging infectious diseases. We propose a delayed SIS model to examine the effects of environmental contamination on human health, which can lead to the spread of numerous diseases. A threshold parameter called basic reproduction number has been obtained for the system. Within the sight of time delay, stability analysis for equilibrium points has been obtained. The existence of Hopf bifurcation around endemic equilibrium point pertaining to time delay as a critical parameter is observed. Our study suggests that pollution can have detrimental effects on the spread of disease. Analytical results are supported by numerical simulations.

Journal

ANNALI DELL UNIVERSITA DI FERRARASpringer Journals

Published: May 1, 2023

Keywords: SIS model; Infectious disease; Time delay; Basic reproduction number; Hopf-bifurcation; Stability analysis; 34D20; 92B05; 92D25

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