MS affects roughly 2.5 million adults worldwide and 400,000 in the US.
There is currently no cure for MS and treatment generally focuses on patient-related aspects.
Treatment can also reduce the frequency and severity of relapses.
There is no single diagnostic test that confirms multiple sclerosis.
Diagnostic criteria for MS include clinical and laboratory/imaging tests that focus on demonstrating dissemination of lesions in space (DIS) and dissemination in time (DIT).