Optimal Control of the Coronavirus Pandemic with Impacts of Implemented Control Measures

Tunde Tajudeen Yusuf; Afeez Abidemi; Ayodeji Sunday Afolabi; Emmanuel Jesuyon Dansu

doi:10.46481/jnsps.2022.414

Authors

Tunde Tajudeen Yusuf Department of Mathematical Sciences, Federal University of Technology, Akure, P.M.B. 704, Ondo State, Nigeria
Afeez Abidemi
[email protected]
Department of Mathematical Sciences, Federal University of Technology, Akure, P.M.B. 704, Ondo State, Nigeria https://orcid.org/0000-0003-1960-0658
Ayodeji Sunday Afolabi Department of Mathematical Sciences, Federal University of Technology, Akure, P.M.B. 704, Ondo State, Nigeria
Emmanuel Jesuyon Dansu Department of Mathematical Sciences, Federal University of Technology, Akure, P.M.B. 704, Ondo State, Nigeria

Keywords:

Coronavirus, Epidemiological model, Objective functional, Optimality system, Pontryagin’s maximum principle, Disease prevalence

Abstract

This paper considers the current global issue of containing the coronavirus pandemic as an optimal control problem. The goal is to determine the most advantageous levels of effectiveness of the various control and preventive measures that should be attained in order to cost effectively drive the epidemic towards eradication within a relatively short time. Thus, the problem objective functional is constructed such that it minimizes the prevalence as well as the cost of implementing the various control measures subject to a model for the disease transmission dynamics which incorporates the existing controls. The optimality system of the model is derived based on Pontryagin's maximum principle while the resulting system is solved numerically using the Runge-Kutta fourth order scheme with forward-backward sweep approach. Findings from our results show that the new cases and the prevalence of the disease can be remarkably reduced in a cost effective way, if the specified optimal levels of effectiveness of the various preventive and control measures are upheld continuously for at least a month. Moreover, the results also show that the disease can be eventually eradicated if these effectiveness levels are sustained over a reasonable length of time.

Dimensions

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