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JalapenoLuv
In the Conclusion of the Faherty paper they talk about organisms which block apoptosis possibly promoting cancer.
As for ME/CFS being caused by pathogens, I think there is a good argument for Chlamydia pneumoniae, parvovirus B19, Coxiella burnetii and Brucella being proven causes of ME/CFS, in that ME/CFS is often seen to arise after infection with these pathogens, and ME/CFS then clears up when treatments are given to treat these pathogens and they largely disappear from the blood. So that's reasonable proof.
But in cases like enterovirus-associated ME/CFS, it's hard to detect these viruses in the blood (in part because enteroviruses often form intracellular infections, called non-cytolytic infections, which are difficult to detect). And there are no treatments that can cure an enterovirus infection. Therefore you cannot get the sort of evidence I just mentioned where when you eliminate the infection, the ME/CFS disappears.
Though Dr Chia's work with IV interferon treatment of ME/CFS was very interesting, because using this treatment, he found a number of ME/CFS patients with enterovirus infections went into remission for up to a year, with a concomitant decrease in enterovirus RNA in their blood leucocytes. When there was a relapse in ME/CFS in these patients, there was also a reappearance of viral RNA in the leucocytes. Chia's study is
here. So this seem to be moving towards a proof that enterovirus can cause ME/CFS.