Thank you it is useful to have this clear statement from Sharpe, though I suspect he is happy to suggest one thing to one audience and something else to another.
The BPS researchers in their publications do not present a clear distinction with different case definitions so we can not know whether their subjects had what Sharpe would consider CFS or what he would consider ME or indeed something else completely different. Indeed given their preference for the Oxford criteria most BPS research could include either or possibly neither.
Also does White’s CFS include or differ from idiopathic chronic fatigue without PEM. If he believes there is an important distinction between ME and CFS why does he not make this clear in his publications, especially when most researchers currently regard both as a provisional single entity.
