Hundreds of hospitals do not have enough nurses to care for patients properly, according to analysis of staffing levels by The Times.
Research found that 43 per cent of NHS wards have only one nurse for every eight patients, a figure flagged up in the "red zone" of a recent government safety report.
Experts have also warned that elderly care statistics showing on average more than 9.1 patients per nurse, could compromise care.
Today, MPs called for the number of nurses on duty in every English hospital ward should be collected daily and published to help prevent a repeat of the Stafford hospital scandal.
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Another cold, frosty and foggy night for many. Northern and western areas will see thickening cloud, patchy rain and milder temperatures.
Temperatures have already plunged to -12C in some parts of the UK this winter - but Thursday could be the coldest day yet.