Scientists are looking at the possibility that a cocktail of worm eggs, intended to hatch inside the bodies of those who swallow them, could be used as an MS treatment.
A recent study suggested that people already infected with this kind of worm, known as helminths, experienced fewer symptoms of MS. This has led the FDA to approve a small trial of the therapy next month on five patients.
It is hoped that the therapy will prove to be a useful treatment with few of the side effects associated with some other MS treatments. Similar therapies have proved useful in treating some sufferers of inflammatory bowel disease.