New blood test can detect 50 types of cancer

System uses machine learning to offer new way to screen for hard-to-detect cancers

A new blood test that can detect more than 50 types of cancer has been revealed by researchers in the latest study to offer hope for early detection.

The test is based on DNA that is shed by tumours and found circulating in the blood. More specifically, it focuses on chemical changes to this DNA, known as methylation patterns.