Sir Patrick Vallance speaking at the government's daily coronavirus press briefing

The video discusses the calculation of the R value, which is crucial in understanding the spread of infections. It highlights the various data sources used, such as genomics and hospital admissions, and explains the variability in R due to different models and regional differences. The video also covers the ongoing efforts to measure R through population surveys, aiming to refine it to a more precise value over time.

Why is it important to refine the measurement of the R value?

What does the speaker mean by saying the R value will never be absolutely precise?