In the SIR model, individuals in a population can be in one of three states:
Susceptible (S): Individuals who are not infected but can become infected. Infectious (I): Individuals who are infected and can transmit the disease to susceptible individuals. Recovered (R): Individuals who have recovered from the infection and are assumed to have immunity.
The transitions between these states are governed by two main parameters: the transmission rate (β) and the recovery rate (γ).
