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Theory and Modern Applications

Table 6 Parameters of the suggested Covid-19 model

From: Mathematical model of COVID-19 spread in Turkey and South Africa: theory, methods, and applications

Φ: The rate at which recovered and were vaccinated

\(\mu _{1}\): Turkish natural mortality rate

α(x): The infection force

β: Transmission rate of \(I_{D} ( t )\) class

γ: Transmission rate of \(I_{A} ( t )\) class

\(\delta _{1}\): Transmission rate of \(I_{R} ( t )\) class

ε: Proportion rate of detection relative to asymptomatic class

θ: Proportion rate of detection relative to symptomatic class

ξ: Rate that infected are not aware of their status

η: Rate that infected are aware of their status

μ: Rate that nontested join class \(I_{T} ( t )\)

v: Rate that tested join class \(I_{T} ( t )\)

τ: The mortality rate due to Covid-19

λ: Recovery rate of class I(t)

κ: Recovery rate of class \(I_{A} ( t )\)

ξ: Recovery rate of class \(I_{R} ( t )\)

φ: Recovery rate of class \(I_{D} ( t )\)

σ: Recovery rate of class \(I_{T} ( t )\)

\(k_{1}\): Contact rate

p: Proportion that a contact is sufficient enough to lead to transmission

w: Transmission coefficient for the infected classes

Λ: Recruitment rate into class S(t)

\(\gamma _{1}\): Rate of vaccination