Spatiotemporal Characteristic of Epidemic Spreading in Mobile Individuals
HE Min-Hua1, ZHANG Duan-Ming1, PAN Gui-Jun1,2, YIN Yan-Ping1, TAN Xin-Yu1
1Department of Physics, Huazhong University of Science and Technology, Wuhan 4300742Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062
Spatiotemporal Characteristic of Epidemic Spreading in Mobile Individuals
HE Min-Hua1;ZHANG Duan-Ming1;PAN Gui-Jun1,2;YIN Yan-Ping1;TAN Xin-Yu1
1Department of Physics, Huazhong University of Science and Technology, Wuhan 4300742Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062
摘要We numerical simulate the propagation behaviour and people distribution trait of epidemic spreading in mobile individuals by using cellular automaton method. The simulation results show that there exists a critical value of infected rate fluctuating amplitude, above which the epidemic can spread in whole population. Moreover, with the value of infected rate fluctuating amplitude increasing, the spatial distribution of infected population exhibits the spontaneous formation of irregular spiral waves and convergence phenomena, at the same time, the density of different populations will oscillate automatically with time. What is more, the traits of dynamic grow clearly and stably when the time and the value of infected rate fluctuating amplitude increasing. It is also found that the maximal proportion of infected individuals is independent of the value of fluctuating amplitude rate, but increases linearly with the population density.
Abstract：We numerical simulate the propagation behaviour and people distribution trait of epidemic spreading in mobile individuals by using cellular automaton method. The simulation results show that there exists a critical value of infected rate fluctuating amplitude, above which the epidemic can spread in whole population. Moreover, with the value of infected rate fluctuating amplitude increasing, the spatial distribution of infected population exhibits the spontaneous formation of irregular spiral waves and convergence phenomena, at the same time, the density of different populations will oscillate automatically with time. What is more, the traits of dynamic grow clearly and stably when the time and the value of infected rate fluctuating amplitude increasing. It is also found that the maximal proportion of infected individuals is independent of the value of fluctuating amplitude rate, but increases linearly with the population density.
HE Min-Hua;ZHANG Duan-Ming;PAN Gui-Jun;YIN Yan-Ping;TAN Xin-Yu. Spatiotemporal Characteristic of Epidemic Spreading in Mobile Individuals[J]. 中国物理快报, 2008, 25(2): 393-396.
HE Min-Hua, ZHANG Duan-Ming, PAN Gui-Jun, YIN Yan-Ping, TAN Xin-Yu. Spatiotemporal Characteristic of Epidemic Spreading in Mobile Individuals. Chin. Phys. Lett., 2008, 25(2): 393-396.
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