The SIR model is a simple, yet widely used epidemiological model in its various forms. Adjust the values below to see various outcomes. The sliders control the rate of change. Transmission controls how fast the disease is transmitted to susceptible individuals per day, and recovery is how many days it on average takes to recover.



S₀, I₀ & R₀ defines the initial values for the simulation. The entire population should be susceptible in Norway for COVID-19. There must also be at least one infected. The number of recovered people will be zero at the start of an epedemic.. The sum of S₀, I₀ & R₀ should equal the total Norwegian population.