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Mathematics

Mathematical Models of Epidemic Spread like SIR Compartments

Quick fact

The SIR model can show that even a tiny change in how many people each infected person infects (the R₀ value) can be the difference between a small outbreak and a massive epidemic.

Why this is interesting

Every day, headlines show charts of infected cases rising and falling—but how do scientists predict those curves before they happen? The answer lies in a mathematical model that treats a population like a series of mixing bowls.