Research suggests that CFS is an autoimmune disease

Benefit from B-lymphocyte depletion using the anti-... [PLoS One. 2011] - PubMed - NCBI CONCLUSION: The delayed responses starting from 2-7 months after Rituximab treatment, in spite of rapid B-cell depletion, suggests that CFS is an autoimmune disease and may be consistent with the gradual elimination of autoantibodies preceding clinical responses. The present findings will impact future research efforts in CFS.