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Global threshold dynamics of SIQS epidemic model in time fluctuating environment

School of Mathematics and Statistics, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, P. R. China

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Meng Fan

School of Mathematics and Statistics, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, P. R. China

E-mail Address: mfan@nenu.edu.cn

Corresponding author.

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, and

Xinmiao Rong

School of Mathematics and Statistics, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, P. R. China

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https://doi.org/10.1142/S1793524517500607Cited by:1 (Source: Crossref)

Abstract

The paper characterizes the global threshold dynamics of an epidemic model of SIQS type in environments with fluctuations, where the quarantine class is explicitly involved. Criteria are established for the permanence and extinction of the infective in environments with time oscillations. In particular, we further consider an environment which varies periodically in time. The global threshold dynamic scenarios i.e. the existence and global asymptotic stability of the disease-free periodic solution, the existence of the endemic periodic solution and the permanence of the infective are completely characterized by the basic reproduction number defined by the spectral radius of an associated linear integral operator.

Keywords:

AMSC: 92D30, 34C25, 34D23

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