Analysis of COVID-19 Disease Model: Backward Bifurcation and Impact of Pharmaceutical and Nonpharmaceutical Interventions

Table 1

Parameters and their descriptions of the system (1).

Variable	Interpretation
	The recruitment rate of susceptible individuals
	The effectual contact rate among susceptible and infectious individuals
	Death rate of individuals (natural)
	The rate of exposed individuals becoming infectious
	The rate of quarantined individuals becoming hospitalised
	The portion of infected individuals
	The recovery rate of infected ones