The breakthrough is being hailed as a major step towards the “holy grail” of curing cancer after trials on 1,400 patients found the simple procedure worked with up to 90 per cent accuracy. Experts said the findings could pave the way for an almost universal NHS screening programme that could detect warning signs of disease long before it developed, vastly improving survival chances. A new blood test able to detect 10 types of cancer years before a person falls ill could become available on the NHS within five years, scientists say. Simon Stevens, chief executive of NHS England, said such breakthroughs were part of major changes which “would unlock enormous survival gains” across the health service…. Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.