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A Mathematical Model for a Transmissible Disease with a Variant

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  • A. Otto
  • M. Amidou

Abstract

The outbreak of the Coronavirus (COVID‐19) pandemic around the world has caused many health and socioeconomic problems, and the identification of variants like Delta and Omicron with similar and often even more transmissible modes of transmission has motivated us to do this study. In this article, we have proposed and analyzed a mathematical model in order to study the effect of health precautions and treatment for a disease transmitted by contact in a constant population. We determined the four equilibria of the system of ordinary differential equations representing the model and characterized their existence using exact methods of algebraic geometry and computer algebra. The model is studied using the stability theory for systems of differential equations and the basic reproduction number R0. The stability of the equilibria is analyzed using the Lienard‐Chipart criterion and Lyapunov functions. The asymptotic or global stability of endemic equilibria is established, and the disease‐free equilibrium is globally asymptotically stable if R0

Suggested Citation

  • A. Otto & M. Amidou, 2022. "A Mathematical Model for a Transmissible Disease with a Variant," Journal of Applied Mathematics, John Wiley & Sons, vol. 2022(1).
    • Handle: RePEc:wly:jnljam:v:2022:y:2022:i:1:n:5050602
    DOI: 10.1155/2022/5050602
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    References listed on IDEAS

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    1. Li, Tingting & Guo, Youming, 2022. "Modeling and optimal control of mutated COVID-19 (Delta strain) with imperfect vaccination," Chaos, Solitons & Fractals, Elsevier, vol. 156(C).
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