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Theory and Modern Applications

Table 1 Parameters and description

From: Dynamics of COVID-19 mathematical model with stochastic perturbation

Notations

Description

S(t)

Represents susceptible population

I(t)

Represents infectious people class

R(t)

Denotes recovered population

Λ

The joining rate of people to susceptible class through birth or migration

β

Rate at which the susceptible tends to infected class

μ

Represents natural and due to coronavirus death

γ

Represents the recovered rate

B(t)

The standard Brownian motions, with \(\rho^{2}>0\) and with intensity of white noise

δ

The rate of deteriorate in health