The global stability analysis for the mathematical model of an infectious disease is
discussed here. The endemic equilibrium is shown to be globally stable by using a …

Social distance, quarantines and total lock-downs are non-pharmaceutical interventions that
policymakers have used to mitigate the spread of the COVID-19 virus. However, these …

This research conducts a detailed analysis of a nonlinear mathematical model representing
COVID-19, incorporating both environmental factors and social distancing measures. It …

Vaccines are not administered on a continuous basis, but injections are practically
introduced at discrete times often separated by an important number of time units, and this …

In times of pandemics, researchers hurry to find the best control policy to limit the spread of a
disease and its consequences on the health care and economic sectors. To reach a …

According to numerous past epidemic outbreaks, a poorly controlled pandemic can have
catastrophic effects, killing millions of people in a matter of decades and having a significant …

In this work, the spread of a contagious disease on a society where the individuals may take
precautions is modeled. The primary assumption is that the infected individuals transmit the …

In this paper, we study an optimal control approach against seasonal coronaviruses by
adding terms of reinfection to dynamics of the optimization constraint and which is mainly …

Most epidemiological studies prefer to rely on differential systems because of their
mathematical tractability, however, in addition to the need to control modeling framework …

COVID-19 global pandemic has been significantly damaging the human well-being, life style
of people, and the global economy. At the beginning of the epidemic, there were no …