In epidemiology, the basic reproduction number, or basic reproductive number, denoted, of an infection can be thought of as the expected number of cases directly generated by one case in a population where all individuals are susceptible to infection.
In this video, Kathrine Frey Frøslie aka Statistrikk The Knitting Statistician, cleverly uses crochet to demonstrate the concept visually:
I encourage you to watch until then end when the numbers absolutely explode in yarn. Fascinating and scary. Please – wear a mask, wash your hands, socially distance or stay home if you can.
Source web site: statistrikk.no
