Last night, Professor John Edmunds, who sits on the Scientific Advisory Group for Emergencies (Sage), said the system is still ineffective.
“I honestly couldn’t care less whether it’s world-beating or not,” he told BBC Newsnight.
“I just wanted it to be virus beating and it is not. The system is quite clunky, it takes quite a lot of time to get the information out of individual cases about their contacts.”
What numbers would add up to success?
Another group of scientists published research yesterday in The Lancet that sets out the minimum standards that need to be met in order to avoid a second wave of Covid-19 infections.