Acute kidney injury, which NHS guidance says is 'needlessly' killing thousands of patients, is a problem that affect patients who are already seriously ill in hospital.
Fiona Loud of the Kidney Alliance said patients with systemic illnesses were most at risk.
ITV News Science and Medical Editor Lawrence McGinty explains:
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A toy dinosaur and striped blanket the baby was wrapped in when it was born were among the items stolen.
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The British territory of St Helena is in the South Atlantic, and the government has warned swimmers to enter the sea at their own risk.