Nonlinear dynamics of COVID-19 SEIR infection model with optimal control analysis

In this study, we have presented a data-driven SEIR compartmental model for the 2019 coronavirus infections in Ghana. Using the fminsearch optimization routine in Matlab, and the reported cumulative infected cases of COVID-19 in Ghana from 13th March 2020 to 6th October 2020, we have estimated the basic reproduction number, R-0 approximate to 1.0413. We have further developed a controlled SEIR dynamical model for COVID-19 disease with a personal protection control strategy. We have derived an optimality system from our proposed optimal control problem. Using the fourth Runge-Kutta iterative scheme with the forward-backward method, we have performed numerical simulations for the model problem. From the numerical results, we can argue that proper personal protection practices can help reduce the disease transmission in the susceptible human population.

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