Researchers may have isolated a virus linked to multiple sclerosis, paving the way for a possible treatment for the degenerative neurological disease, according to a medical report published Friday.

In a research paper published in the journal Science, doctors from the Wistar Institute said they have found evidence associating a rare virus known as HTLV-1 to the development of multiple sclerosis.Researchers said they discovered the HTLV-1 virus in blood cells drawn from each of six test subjects diagnosed as having MS. Only one healthy subject participating in the study showed signs of the virus.