🔄 The SIRS Compartmental Epidemic Model: Temporary Immunity and Endemic Cycles
The Susceptible–Infectious–Recovered–Susceptible (SIRS) model extends the classic SIR framework by incorporating temporary immunity. After recovering, individuals transition to the Recovered (R) class, where they are immune for a period before returning to the Susceptible (S) pool. This reinfection cycle is ideal for modeling diseases like seasonal influenza, respiratory syncytial virus (RSV), or the common cold, … Read more