In this section we provide basic medical information about ME/CFS, Fibromyalgia, Long COVID, and other infection-associated chronic conditions and illnesses (IACCIs.)  In keeping with our mutual support mission, the information contained herein is written for the lay reader, with emphasis on the patient/caregiver perspective.  Where appropriate, reference is made to medical literature and to websites that may provide more technical information.

Looking for advice and guidance in coping with ME/CFS and other IACCIs?  Check out the Advice and Guidance Section.