Abstract
We develop, in this paper, a reaction–diffusion epidemic model with the general incidence rate and personal protection awareness, where, the direct transmission and indirect transmission are also introduced to describe the complexity of the spread of infectious diseases. The existence, uniqueness and boundedness of global solution are obtained first. And then, the basic reproduction number \({\mathcal {R}}_{0}\) is derived to go as the threshold value for predicting the persistence and extinction of disease. To be more specific, model admits a globally asymptotically stable disease-free steady state if \({\mathcal {R}}_{0}<1\), while the disease is persistent for \({\mathcal {R}}_{0}>1\). Further, for \({\mathcal {R}}_{0}=1\), the global asymptotic stability of the disease-free steady state is demonstrated when all diffusion coefficients are constants. In addition, the global asymptotical stability of the endemic equilibrium of this model with spatially homogeneous is derived if the corresponding basic reproduction is great than 1. Particularly, we also discuss the existence of traveling wave solution and the minimum wave speed \(c^{*}\) of the spatial homology model. Numerical simulations are presented to validate the main results and provide some recommendations for the control of multi-transmission diseases.
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This research is partially supported by the Natural Science Foundation of Xinjiang Uygur Autonomous Region (Grant Nos. 2022TSYCCX0015 and 2021D01E12), the National Natural Science Foundation of China (Grant Nos. 12361103, 11961066).
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Shen, J., Wang, S. & Nie, L. Dynamics of a reaction–diffusion epidemic model with general incidence and protection awareness for multi-transmission pathways. Z. Angew. Math. Phys. 74, 248 (2023). https://doi.org/10.1007/s00033-023-02144-0
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DOI: https://doi.org/10.1007/s00033-023-02144-0
Keywords
- Reaction–diffusion model
- General incidence and spatial heterogeneity
- Multi-transmission and protection awareness
- Stability and traveling wave solution