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Paper Information

Journal:   MATHEMATICAL SCIENCES   December 2018 , Volume 12 , Number 4; Page(s) 313 To 320.
 
Paper: 

On the global stability of the endemic state in an epidemic model with vaccination

 
 
Author(s):  Parsamanesh Mahmood*, FARNOOSH RAHMAN
 
* Department of Mathematics, Faculty of Science, University of Zabol, Zabol, Iran
 
Abstract: 
This paper investigates an SIS epidemic model with variable population size including a vaccination program. Dynamics of the endemic equilibrium of the model are obtained, and it will be shown that this equilibrium exists and is locally asymptotically stable when  0 > 1. In this case, the disease uniformly persists, and moreover, using a geometric approach we conclude that the model is globally asymptotically stable under some conditions. Also, a numerical discussion is given to verify the theoretical results.
 
Keyword(s): SIS epidemic model,Vaccination,Endemic equilibrium,Global stability,Geometric approach
 
References: 
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