Abstract
In this paper, we study a multiple infected compartments model for waterborne diseases which is derived from the continuous case by using the well-known Mickensnon-standard discretization. The positivity of solutions with positive initial conditions and the expressions of equilibria are obtained. By applying analytic techniques and constructing discrete Lyapunov functions, we obtain the results that if \(R_0\le 1\), the disease-free equilibrium is globally asymptotically stable, and if \(R_0>1\) the unique endemic equilibrium is also globally asymptotically stable when the system degenerates the fast-slow system. Furthermore, numerical simulations verify our theoretical results. Our numerical results imply that the decay rate of pathogen in the water has no influence on endemic equilibrium, but it has a significant impact on the peak value of infected individuals.
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Acknowledgments
The research has been supported by the Natural Science Foundation of China (11261004, 11561004), the Natural Science Foundation of Jiangxi Province (20151BAB201016), and the Postgraduate Innovation Fund of Jiangxi Province (YC2014-S410).
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Zhang, L., Gao, S. & Zou, Q. A Non-Standard Finite Difference Scheme of a Multiple Infected Compartments Model for Waterborne Disease. Differ Equ Dyn Syst 28, 59–73 (2020). https://doi.org/10.1007/s12591-016-0296-8
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DOI: https://doi.org/10.1007/s12591-016-0296-8