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Euler’s and Heun’s numerical solutions to a mathematical model of the spread of COVID-19

In this paper, we considered a mathematical model of the spread of the Coronavirus disease 2019 (COVID-19). The model was based on the COVID-19 outbreak in Wuhan, China. The model was of the type of the SEIR (Susceptible, Exposed, Infected, Removed) system involving the effects of individual reaction and governmental action. We used Euler's and Heun's numerical methods for solving the model. We took parameters of the Wuhan case for simulations of the COVID-19 spread. Both Euler's and Heun's methods produced solutions having the same behavior. These solutions provided a prediction of the spread of COVID-19 in a particular region. © 2021 Author(s).