[nomadking]

The biggest problem in logistics at the moment is the severe lack of HGV drivers. That shortage is not only UK-wide, but Europe-wide and world-wide.
The "pingdemic" is a result of people spending too long in close contact, with somebody who has tested positive, who in turn has spent too long in close contact with somebody who has actually passed the virus on.
It's not a case of nobody passing the virus on. At least one of the 3 people in the chain has passed it on. It demonstrates transmission of the virus is still occurring.