A blood test that can detect cancer before symptoms develop is being assessed for potential NHS use, health officials have said.Health Secretary Wes Streeting will announce that the Government is backing the next phase of testing for a ground-breaking blood test which can detect 12 cancers, including bowel cancer.

A blood test that can detect cancer before symptoms develop is being assessed for potential NHS use, health officials have said.Health Secretary Wes Streeting will announce that the Government is backing the next phase of testing for a ground-breaking blood test which can detect 12 cancers, including bowel cancer.