Christina Applegate revealed on Monday that she does not have multiple sclerosis. She said her doctor has concluded that the autoimmune diagnosis was mistaken. Applegate had spent years giving candid and often raw accounts of her experience with MS in public. She had previously spoken as though the MS diagnosis was established. Her latest statement directly withdraws the premise behind those earlier accounts. She attributes the earlier belief that she had MS to a mistaken diagnosis rather than a change in her health. The released information did not explain how the original diagnosis was made or whether it would be formally changed.