Year: 2020
Author: Jing Zhang, Fengying Wei
Annals of Applied Mathematics, Vol. 36 (2020), Iss. 4 : pp. 442–458
Abstract
A type of SEIR epidemic model with media coverage and temporary immunity is investigated in this paper. The existence and uniqueness of the global positive solution with any positive initial value is proved. Under the condition $R^s_0 > 1$, we prove that the disease is persistent in the mean for a long run. Furthermore, by constructing suitable Lyapunov functions, some sufficient conditions that guarantee the existence of stationary distribution are derived. We also obtain that, if the condition $R^e_0 < 1$ is satisfied, then the disease is extinct with an exponential rate. As a consequence, some examples and numerical simulation are demonstrated to show the validity and feasibility of the theoretical results.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/2020-AAM-18593
Annals of Applied Mathematics, Vol. 36 (2020), Iss. 4 : pp. 442–458
Published online: 2020-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 17
Keywords: stochastic SEIR model media coverage temporary immunity persistence extinction stationary distribution.