Our immune cells can sometimes recognise and destroy cancer cells without assistance. But tumours may hide by taking advantage of a gene called CD47

Scientists have used genetically reprogrammed bacteria to destroy tumours in mice. The innovative method one day may lead to cancer therapies which tr(...)

The report found that 45 per cent backed passport checks on visitors from Ireland, with 29 per cent opposed and 25 per cent with no opinion. Photograph: Alan Betson

Almost half of British voters want to introduce passport checks between the UK and Ireland after Brexit, according to a major new opinion survey. T(...)