Invalid Date, COVID cases have fallen 23 per cent in a week, according to data from the symptom tracking Zoe app. It comes as scientists at Cambridge University said they believe the crucial R rate has dropped below one in some parts of the country, ahead of the Government's official update later today. 10 The number of people diagnosed with the disease is falling in every region, according to data on the Government coronavirus dashboard And new cases are tumbling in every age group - except, crucially, the over-80s. It's the first signs the restrictions might be starting to work to tackle the spread of a more contagious mutant strain that emerged in Kent last year.