Chia, JKS and Chia, AY. Chronic fatigue syndrome is associated with chronic enterovirus infection of the stomach. Journal of Clinical Pathology, 2008, 61, 43-48.

Evidence for post-exertional abnormalities, which is unlikely to be due to deconditioning.

VanNess, JM., Snell, CR and Stevens, SR. Diminished cardiopulmonary capacity during post-exertional malaise. Journal of Chronic Fatigue Syndrome, 2007, 14, 2, 77-85.

Evidence for subgroups.

Jason, L.A., Corradi, K., & Torres-Harding, S. Toward an empirical case definition of CFS. Journal of Social Service Research, 2007, 34, 43-54.

Kerr, J., Burke, B., Petty, R., Gough, J., Fear, D., David, M., Axford, J., Dalgleish, A and Nutt D. Seven genomic subtypes of chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME): a detailed analysis of gene networks and clinical phenotypes. Journal of Clinical Pathology, 2007 Dec 5 [Epub ahead of print]. doi:10.1136/jcp.2007.053553.

Evidence for multi-component programmes including pacing.

Jason, LA., Torres-Harding, S., Friedberg, F., Corradi, K., Njoku, MG., Donalek, J., Reynolds, N., Brown, M. Weitner, BB., Rademaker, A and Papernik, M. Non-pharmacologic interventions for CFS: a randomized trial. Journal of Clinical Psychology in Medical Set-tings, 2007, 14, 4, 275-296.

Data on the impact of CFS compared to other chronic diseases.

Núñez, M., Núñez, E., del Val, JL., Fernández-Huerta, JM., Alegre, C., Bonet, M., Roig, D., Gomez, E., Godás, T and Fernández-Solà, J. Health-related quality of life in chronic fatigue syndrome versus rheumatoid arthritis as control group. Journal of Chronic Fatigue Syndrome, 20007, 14, 2, 31-43.

See also long term follow-up study:

Data showing effects of CBT may have been overstated.

Malouff, JM., Thorsteinsson, EB., Rooke, SE., Bhullar, N and Schutte, NS. Efficacy of cognitive behavioral therapy for chronic fatigue syndrome: a meta-analysis. Clinical Psychology Review, 2008, 28, 5, 736-745.

Importance of sound information given to doctors.

Lu, TV., Torres-Harding, SR and Jason, LA. The effectiveness of early educational intervention in improving future physicians' attitudes regarding CFS/FM. Journal of Chronic Fatigue Syndrome, 2007, 14, 2, 25-30.

Discussion of pacing

Nijs, J., Paul, L and Wallman, K. Chronic fatigue syndrome: An approach combining self-management with graded exercise to avoid exacerbations. Journal of Rehabilitation Medicine, 2008, 40, 4, 241-247.

Evaluation of therapeutic aspects of CBT and counselling. Expression and acceptance of distress (emotional processing) is more important than type of therapy.

Godfrey, E., Chalder, T., Ridsdale, L., Seed, P and Ogden, J. Investigating the ‘active ingredients’ of cognitive behaviour therapy and counselling for patients with chronic fatigue in primary care: Developing a new process measure to assess treatment fidelity and predict outcome. British Journal of Clinical Psychology, 2007, 46, 253-272.

Evidence for subroups and the importance for management.

Jason, LA., Torres-Harding, S., Brown, M., Sorenson, M., Donalek, J., Corradi, K., Maher, K and Fletcher, MA. Predictors of change following participation in non-pharmacologic interventions for CFS. Tropical Medicine and Health, 2008, 36, 1, 23-32.

Evidence that multiple chemical sensitivity is not somatised anxiety

Bloch, RM and Meggs, WJ. Comorbidity patterns of self-reported chemical sensitivity, allergy, and other medical illnesses with anxiety and depression. Journal of Nutritional & Environmental Medicine, 2007, 16, 2, 136–148.

Evidence for an association between CFS and candida

Evengård, B., Gräns, H., Wahlund, E and Nord, CE. Increased number of Candida albicans in the faecal microflora of chronic fatigue syndrome patients during the acute phase of illness. Scandinavian Journal of Gastroenterology, 2007, 42, 1514-1515.