Seems there was some thought that MC could be viral. And given that some of the symptoms here for folks are like CFS I thought this recent article was interesting. Though it's not without controvery.
Chronic fatigue syndrome is associated with chronic
enterovirus infection of the stomach
http://press.psprings.co.uk/jcp/september/cp50054.pdf
CFS is assoc /w chronic enterovirus infection of the stomach
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