Chronic fatigue syndrome (also known as myalgic encephalomyelitis) is associated with enteroviruses (such as Coxsackie B virus), human herpesvirus 6 variant A, human herpesvirus 7, and parvovirus B19. The bacteria Coxiella burnetii and Chlamydia pneumoniae are known causes of chronic fatigue syndrome (antibiotics can cure these bacterial forms of chronic fatigue syndrome).
