An SEIDR Model for the Early Spread of COVID-19

In this article, we conduct a literature review on the history and mathematical modeling of infectious diseases and COVID-19. Next, some simple epidemic dynamic models and the basic reproductive number theory are introduced. We propose a SEIDR model for COVID-19 and provide the solution methods for the basic reproduction number, parameters, and dynamic model. Finally, we simulate the early stages of the COVID-19 epidemic in Argentina, Indonesia, Mexico, and South Africa with the SEIDR model.