Severe ME, POTS & MCAS.
So the conclusion of the researchers is this:
This investigation may inform the pathomechanism of reduced NK cell cytotoxicity in CFS/ME patients.
And for those that don't understand the lingo, this means the 'CFS' patients had reduced ability to kill stuff like viruses, and thus also kill cancer cells. If repeated and proven, it would thus be a form of immune suppression but worse as it would affect your CNS not just fighting off a common cold. Then it would get more interesting as not only could you compare Severe to Mild, but 30 years sick vs 3 years sick and measure if the reduced NK function worsens over time and if it does, how long it takes.
Would be interesting to get a comment from Dr Nancy Klimas on this, as she is the 'CFS' NK function queen.