Boris Johnson giving first Downing Street coronavirus press briefing since recovery

The transcript discusses the importance of the R rate in guiding policy and the need to keep it below one to prevent exponential growth. It highlights the variability of the R rate in different environments and the importance of data in managing it. The discussion also covers the role of face masks in providing safety and confidence as lockdown measures are eased.

What is the collective endeavor mentioned in relation to the R rate?

What role do face coverings play according to the speaker?