The cause of MS, which affects about 400,000 people in the United States, is unknown.
The disease that the researchers discovered in monkeys at OHSU’s Oregon National Primate Research Center is associated with a herpes virus that could give significant clues into how multiple sclerosis develops in humans. MS researchers have long believed that a type of herpes virus may trigger multiple sclerosis in people who are genetically susceptible to the disease.
The OHSU researchers' findings were published online today in the Annals of Neurology.