Dynamic behavior of a stochastic SIRS model with two viruses

被引：0
|
作者：
Zhao, Jiandong [1 ]
Zhang, Tonghua [2 ]
Han, Zhixia [1 ]
机构：
[1] Ludong Univ, Sch Math & Stat Sci, Yantai 264025, Shandong, Peoples R China
[2] Swinburne Univ Technol, Dept Math, Melbourne, Vic 3122, Australia
来源：
INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION | 2021年 / 22卷 / 7-8期
关键词：
disease-free equilibrium; moment average in time; stability; stochastic SIRS model; EPIDEMIC MODEL; GLOBAL STABILITY; PERTURBATION;
D O I：
10.1515/ijnsns-2019-0208
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To study the effect of environmental noise on the spread of the disease, a stochastic Susceptible, Infective, Removed and Susceptible (SIRS) model with two viruses is introduced in this paper. Sufficient conditions for global existence of positive solution and stochastically asymptotic stability of disease-free equilibrium in the model are given. Then, it is shown that the positive solution is stochastically ultimately bounded and the moment average in time of the positive solution is bounded. Our results mean that the environmental noise suppresses the growth rate of the individuals and drives the disease to extinction under certain conditions. Finally, numerical simulations are given to illustrate our main results.
引用
收藏
页码：809 / 825
页数：17
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