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:
More top news
At least one person has died after part of the building collapsed shortly after midnight, according to local reports.
Brazilian police said no such incident took place and have charged the Olympian with making a false statement.
A boy aged around six or seven was seen being bundled into the side of a black VW van in Redhill, Surrey during rush hour.