Initial Condition for the Discrete SIR Model with and without Births and Deaths

Available identifiers

initial number of susceptible, infectious and removed individuals is equal to the total population

Defining Formula: $S_{0} + I_{0} + R_{0} = N$
$I_{0}$ symbol represents Number of Infectious Individuals
$N$ symbol represents Total Population Size
$R_{0}$ symbol represents Number of Removed Individuals
$S_{0}$ symbol represents Number of Susceptible Individuals