3 ms·
He's taking about the number of people infected per unit of time, which will indeed increase over time if the reproductive number stays larger than 1.
by wcoenen 12y ago
He's taking about the number of people infected per unit of time, which will indeed increase over time if the reproductive number stays larger than 1.
- biot 12y agoGrowth is number of people per unit time. Rate of growth is number of people per unit time squared. Just as with speed vs. acceleration, there certainly is a distinction.
- wcoenen 12y agoI'm not a native speaker so I could be wrong. But in the wikipedia article about exponential growth, "growth rate" is defined as the first derivative with respect to time, which contradicts what you are saying: https://en.wikipedia.org/wiki/Exponential_growth#Differential_equation https://en.wikipedia.org/wiki/Exponential_growth#Differentia... I understand the distinction you are trying to make, but I think what you call "growth rate" would actually be "growth acceleration".