Coronavirus: R number does not measure risk – financial disaster modelling offers a better alternative
The most important measure on the state of the pandemic is the R number. Also known as the reproduction rate, this is the average number of people an infected person will pass the virus on to. The R number guides government decisions, and there is no doubt it is a very intuitive way to measure the state of the pandemic. However, the R number has come in for much criticism because it is an average, meaning it ignores useful information about individuals and therefore does not account for uncertainty. This includes the fact that there is a sizeable variation in the incubation time of the virus and a large number of infected but asymptomatic people who are hard to detect,Continue Reading