Get the free Morning Headlines email for news from our reporters across the world Sign up to our free Morning Headlines email Sign up to our free Morning Headlines email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice A rapid blood test to help diagnose life-threatening conditions in children – such as sepsis or meningitis – is being trialled in the NHS. The 15-minute blood test can fast-track diagnosis by telling medics