Asymptotic behavior of an SEIR epidemic model with quadratic treatment

Autor: Yu-Ying He, Shu-Jing Gao, Yu-Jiang Liu, Hengmin Lv
Rok vydání: 2012
Předmět:
Zdroj: Journal of Applied Mathematics and Computing. 42:245-257
ISSN: 1865-2085
1598-5865
DOI: 10.1007/s12190-012-0617-1
Popis: Treatment is of great importance in fighting against infectious diseases. In this paper, we investigate a disease transmission model of SEIR type with quadratic treatment function. We consider r as the parameter which describes the societal effort to fight the infection. It is found that the system has four possible equilibria when r changes. Moreover, the existence and stability of equilibria of the model are discussed. Finally, the complex dynamics of the system are displayed by numerical simulations such as bi-stability, backward bifurcations.
Databáze: OpenAIRE