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Dynamics of a waterborne pathogen model under the influence of environmental pollution

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  • Sharma, Sandeep
  • Kumari, Nitu

Abstract

A non-linear mathematical model is proposed and analyzed to capture the role of environmental pollution on the spread of waterborne diseases. We calculate the threshold quantity (i.e. the basic reproduction number) for the proposed model. It is observed that model possesses two equilibria, namely disease free equilibrium and endemic equilibrium. The disease free equilibrium is globally asymptotically stable when the basic reproduction number is less than or equal to one. If the basic reproduction number exceeds one then the disease persists and endemic equilibrium point is globally asymptotically stable under certain conditions. The conditions of global stability of the endemic equilibrium are obtained using the compound matrix. The dynamical study of our model provides a clear insight of the role of pollution on the spread of waterborne diseases. An increase in the size of infected population with increase in the stress related parameters demonstrates that environmental pollution increases the size of the epidemics. Despite the severity of the issue, little efforts have been made in this direction. We firmly believe that our study will bridge this gap and help the authorities forming policies to combat fatal waterborne diseases.

Suggested Citation

  • Sharma, Sandeep & Kumari, Nitu, 2019. "Dynamics of a waterborne pathogen model under the influence of environmental pollution," Applied Mathematics and Computation, Elsevier, vol. 346(C), pages 219-243.
    • Handle: RePEc:eee:apmaco:v:346:y:2019:i:c:p:219-243
    DOI: 10.1016/j.amc.2018.10.044
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    1. Gian-Reto Walther & Eric Post & Peter Convey & Annette Menzel & Camille Parmesan & Trevor J. C. Beebee & Jean-Marc Fromentin & Ove Hoegh-Guldberg & Franz Bairlein, 2002. "Ecological responses to recent climate change," Nature, Nature, vol. 416(6879), pages 389-395, March.
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    1. Liao, Shi-Gen & Yi, Shu-Ping, 2021. "Modeling and analyzing knowledge transmission process considering free-riding behavior of knowledge acquisition: A waterborne disease approach," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 569(C).

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