Again, just to stress part of the BBC article: NHS Test and Trace employs more than 20,000 call handlers and contact tracers. A figure often quoted in recent weeks to highlight its failings is the fact it fails to reach nearly half of contacts. This certainly seems to be poor, but once you include the so-called complex cases passed on to local teams, incorporating council staff and regional Public Health England teams, performance rises to over three-quarters. That is not far off what government experts said was needed to make the system effective. So is test and trace actually performing badly? Perhaps this oft-quoted 50% figure isn't all it seems to be. Maybe this is why Nabarro thinks Britain will do "really well."