AI-enhanced blood test may detect Parkinson’s years before onset

Scientists say new early diagnosis method could improve research into treatments that slow or prevent the disease

A blood test that draws on artificial intelligence can predict who will develop Parkinson's disease up to seven years before symptoms arise, researchers say.

The test is designed to work on equipment already found in many NHS laboratories and, if validated in a broad population of people, could be made available to the health service within two years.