Kermack-McKendrick model

The Kermack-McKendrick model is a mathematical way to understand how infectious diseases spread through a population. It splits people into three groups: Susceptible (can catch the disease), Infected (currently contagious), and Recovered (no longer infectious and immune). The model predicts how the disease moves from susceptible to infected and then to recovered over time, helping to estimate outbreak size, peak infection periods, and the impact of interventions like vaccination. It provides a framework for understanding epidemic dynamics and informing public health responses.