As I've discussed in the past, numerous infections can trigger fibromyalgia and CFS. This study looked at 185 people with hepatitis C (a viral infection of the liver) and found that a dramatic 57% of them also had fibromyalgia — and hepatitis C is getting so common that the CDC is considering recommending that all baby boomers be screened for it!
Read the full article at NCBI.
"Prevalence of Fibromyalgia Among Patients with Chronic Hepatitis C Infection: Relationship to Viral Characteristics and Quality of Life." Ausaf M, et al. Journal of Clinical Gastroenterology, May/June 2012, Volume 46, Issue 5, p. 407-412