NHS Test and Trace
Chief medical officers for England, Scotland, Northern Ireland and Wales confirm shift from one-week isolation for anyone with symptoms.
Former tracing chief says London would benefit most from the new tech.
New NHS Test and Trace "ambition" will be for all urban residents to be 30 minutes’ walk from a coronavirus test.
Labour accuses government of failing to learn lessons of Carillion collapse.
Could real local data mean NHS Test and Trace becomes the solution not the problem?
The government said there was no evidence of data being used unlawfully – but campaigners accuse ministers of "brushing aside" serious errors over GDPR.
Health chiefs do not have data about the number of people following the rules – despite threatening stricter measures if too many people break them.
Scientists modelled what could happen if the R rate jumps to 1.7 in September – and warned that action must be taken now to avoid a second spike.
The British Medical Association said it was "frankly astonishing" there was no new significant health investment in the chancellor's mini-budget.
Government believes figure is due to shift from NHS and care homes to community cases.