Scientists offer hope over autism test

Scientists have taken the first steps towards what they say could become a new blood and urine test for autism. Their study tested children with and without the condition and found higher levels of protein damage in those with the disorder. The researchers said the tests could lead ultimately to the earlier detection of the condition, which can be difficult to diagnose. But experts expressed caution, saying such a test was still a long way off. Autism affects behaviour and particularly social interaction but it is difficult to spot and is not usually diagnosed before the age of two, and often much later.