Modeling the dynamic of COVID-19 with different types of transmissions

In this paper, we propose a new epidemiological mathematical model for the spread of the COVID-19 disease with a special focus on the transmissibility of individuals with severe symptoms, mild symptoms, and asymptomatic symptoms. We compute the basic reproduction number and we study the local sta-bility of the disease-free equilibrium in terms of the basic reproduction number. Numerical simulations were employed to illustrate our results. Furthermore, we study the present model in case we took into consideration the vaccination of a portion of susceptible individuals to predict the impact of the vaccina-tion program. (c) 2021 Elsevier Ltd. All rights reserved.

Automated summary

This study introduces a new epidemiological mathematical model focusing on the transmissibility of different symptoms of COVID-19, calculating the basic reproduction number and examining the local stability of disease-free equilibrium. Numerical simulations were used to illustrate the findings, as well as analyzing the impact of vaccination in the model.