# Articles

Maths in a minute: The gamma distribution

How long do you have to wait for more than one thing to happen?

Maths in a minute: The exponential distribution

How long do you have to wait for something to happen?

Why the generation time of COVID-19 is importantTo work out the famous

*R*number you need to know the time between infections.
Understanding the generation time for COVID-19

How long does it take for one person to infect another?

How to work out doubling time

The doubling time for the Omicron variant seems to be scarily fast. But how do you calculate it?