MODELING EPIDEMIC BASED ON PENNA MODEL.

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Title: MODELING EPIDEMIC BASED ON PENNA MODEL.
Authors: Mingfeng He1 mfhe@dlut.edu.cn, Qiuhui Pan2, Binglin Yu3
Source: International Journal of Modern Physics C: Computational Physics & Physical Computation. May2005, Vol. 16 Issue 5, p799-805. 7p.
Subjects: Epidemics, Lattice theory, Cellular automata, Infection, Mortality, Mathematical models
Abstract: A cellular automata model is developed aiming to study the epidemic on a lattice of two dimensions. The characteristics of individual including reproduction, death by inherited diseases and age are studied in the Penna model. The spreading of epidemic and the reproduction of individual are considered as cellular automata. We shall mainly discuss the influence on the number of epidemical patients by infection rate and death rate. The results show that the existence of epidemic mainly depends on the infection rate and the death rate but not the initial ratio of patients. There are two reasons for nonexistent epidemic. As long as the infection rate is less than 0.3, the epidemic cannot spread. On the other hand, if the infection rate and the death rate are both high, the individuals with epidemic die out and the epidemic cannot spread, either. The epidemic can exist all along when the combination of infection rate and death rate are in the mid area. [ABSTRACT FROM AUTHOR]
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Abstract:A cellular automata model is developed aiming to study the epidemic on a lattice of two dimensions. The characteristics of individual including reproduction, death by inherited diseases and age are studied in the Penna model. The spreading of epidemic and the reproduction of individual are considered as cellular automata. We shall mainly discuss the influence on the number of epidemical patients by infection rate and death rate. The results show that the existence of epidemic mainly depends on the infection rate and the death rate but not the initial ratio of patients. There are two reasons for nonexistent epidemic. As long as the infection rate is less than 0.3, the epidemic cannot spread. On the other hand, if the infection rate and the death rate are both high, the individuals with epidemic die out and the epidemic cannot spread, either. The epidemic can exist all along when the combination of infection rate and death rate are in the mid area. [ABSTRACT FROM AUTHOR]
ISSN:01291831
DOI:10.1142/S0129183105007509