Dr. David Nabarro:

We should be very careful. I do not find it easy to ever look at what countries have done and ascribe difficulty to one issue. It is often a combination of issues that make it difficult to get on top of Covid, and because there is no single playbook, just accumulated experience that is being built up over time which is now quite good. We have to be careful. I personally have said that I believe that the use of face protection is a part of emerging from lockdowns and other stringent controls to being able to live with the virus.