Stability Analysis of a Staged Progression Susceptibility Model for Infectious Diseases
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJMAC-11-4_003
تاریخ نمایه سازی: 27 دی 1401
Abstract:
The aim of this paper is to provide a stability analysis for models with a general structure and mass action incidence; which include stage progression susceptibility, differential infectivity as well, and the loss of immunity induced by the vaccine also. We establish that the global dynamics are completely determined by the basic reproduction number R۰. More specifically, we prove that when R۰ is smaller or equal to one, the disease free equilibrium is globally asymptotically stable; while when it is greater than one, there exist a unique endemic equilibrium. We also provide sufficient conditions for the global asymptotic stability of the endemic equilibrium.
Keywords:
Differential susceptibility , differential infectivity , waning vaccine induced immunity , Lyapunov methods
Authors
Jean Pierre II KOUENKAM
Department of Mathematics, Faculty of Science, University of Yaounde I, Yaounde, Cameroon
Gilbert Chendjou
Department of Mathematics, Faculty of Science, University of Yaounde I, Yaounde, Cameroon
Jose MBANG
Laboratory of Applied Mathematics, Department of Mathematics, Faculty of Science, University of Yaounde I, Yaounde, Cameroon
Yves EMVUDU
Department of Mathematics, Faculty of Science, University of Yaounde I, Yaounde, Cameroon