UK Covid live: percentage testing positive in England levels off but cases rise in Scotland; R number up slightly
Latest updates: Covid cases plateau in England and Northern Ireland but rise in Scotland over the last week; UK's R number up to 07-0.9
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3.38pm GMT
More than 40,600 people have been likely infected with coronavirus while being treated in hospital in England for another reason, raising concerns about the NHS's inability to protect them.
In one in five hospitals at least a fifth of all patients found to have the virus caught it while an inpatient. North Devon district hospital in Barnstaple had the highest rate of such cases among acute trusts in England at 31%.
Related: 40,600 people likely caught Covid while hospital inpatients in England
3.28pm GMT
Devices which measure blood oxygen levels could be giving seriously misleading" results for black and minority ethnic people, possibly contributing to increased Covid-19 mortality, experts have warned.
PA reports:
Pulse oximeters attach a clip-like device to a person's finger, toe or earlobe and send a beam of light to measure oxygen levels in the blood.
The resulting SpO2 reading can be used to monitor oxygen levels of people with a variety of conditions, including by people at home with coronavirus, and to assess patients in hospital.