Epidemiologists use various models to understand and predict disease spread. The most common model is the SIR Model, which divides the population into three compartments: Susceptible (S), Infected (I), and Recovered (R).
Basic Reproduction Number (R0) A crucial concept in these models is the Basic Reproduction Number (R0). R0 represents the average number of secondary infections produced by one infected individual in a fully susceptible population. If R0 is greater than 1, the disease is likely to spread; if it is less than 1, the outbreak will likely die out.
