We published an article earlier this month that contained incorrect estimates for the basic reproduction number (R0) for COVID subvariants BA.4/BA.5 and BA.2. We have now corrected the error, but I ...

(K=population size, beta=transmission rate, alpha=recovery rate, S0=susceptible at the onset of the epidemic, S∞=susceptible at the end of the epidemic) of an infection leading to immunity depends on ...

Scientists say there is no evidence that the BA.5 version of the Omicron coronavirus variant is more transmissible than measles, or that it has a basic reproduction number, or "R-naught" (R0), of 18.6 ...

This article was last updated on 13 October 2021. The basic reproduction number, also known as the R or R0, is the average number of people one person with an infectious disease will likely infect in ...

As more people take precautions, the rate goes down; otherwise, the reverse kicks in BASIC FORMULA: R0 (the infection reproduction number) is often used in epidemiology and public health literature.