期刊
FRACTAL AND FRACTIONAL
卷 6, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/fractalfract6050232
关键词
fractional-order; weighted networks; SIR network models; targeted immunity; epidemic dynamics
资金
- National Natural Science Foundation of China [61775198]
- Science and Technology Project in Henan province [202102310203]
In this paper, a fractional-order SIR epidemic model is proposed on a two-layer weighted network, and the stability of the model is investigated. It is concluded that there is no endemic equilibrium, and a targeted immunity control based on age structure is proposed.
With outbreaks of epidemics, an enormous loss of life and property has been caused. Based on the influence of disease transmission and information propagation on the transmission characteristics of infectious diseases, in this paper, a fractional-order SIR epidemic model is put forward on a two-layer weighted network. The local stability of the disease-free equilibrium is investigated. Moreover, a conclusion is obtained that there is no endemic equilibrium. Since the elderly and the children have fewer social tiers, a targeted immunity control that is based on age structure is proposed. Finally, an example is presented to demonstrate the effectiveness of the theoretical results. These studies contribute to a more comprehensive understanding of the epidemic transmission mechanism and play a positive guiding role in the prevention and control of some epidemics.
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