I'm curious why you are sceptical about the inclusion of Long Covid in the scope of an ME/CFS charity.
For me, including it is warranted on both moral and self-preservation grounds. If Long Covid is excluded, then it's hard to see how an ME/CFS charity could survive in the medium term, as most people developing ME/CFS after the SARS-CoV-2 pandemic began are likely to be diagnosed with Long Covid (or variations of that, PASC etc).
My concerns are complex - but that's part of a wider problem with many issues around ME/CFS where simplifications consistently disguise many of the logical problems that affect understanding of what ME/CFS may or may not be. The best simpliification I can give re: the MEA position is that I'd be more comfortable with the formula - "We help people with who have PVFS and ME/CFS
and also those who have ME/CFS type symptoms following Covid 19 infection".
As an attempt at more thorough assessment I've resorted to the idea of sets (not formal) just as a way of describing where I think there are major logical gaps in the thinking about what ME/CFS is or is not. I've kept it to four propositions, though many more are likely feasible:
(1) ME/CFS as a distinct disease,
or group of diseases which share (unique to the group) pathobiological features and a common symptomology.
on which basis ME/CFS is a ‘set’ which can contain other sets but only where those sets represent diseases that have in common, unique pathobiological features and a common symptomology.
And where ME/CFS as a set can itself be contained only by a set of ‘all diseases’.
(2) ME/CFS as a post viral condition or spectrum of conditions all of which are consequential on prior viral infection and a common symptomology.
on which basis ME/CFS is a ‘set’ which can contain other sets but only where those sets have in common, related pathobiological responses to viral infection and a common symptomology.
And where ME/CFS as a set can itself be contained by a set of ‘all diseases’ and intermediate to that a set containing all infections, and further intermediate to that a set containing all post viral infections.
(3) ME/CFS as a post infection condition or spectrum of conditions all of which are consequential on prior infection of any type and a common symptomology.
on which basis ME/CFS is a ‘set’ which can contain other sets but only where those sets have in common, related pathobiological responses to all forms of infection and a common symptomology.
And where ME/CFS as a set can itself be contained by a set of ‘all diseases’ and intermediate to that a set containing all infections.
(4) Long Covid (as per WHO) as a post viral condition which is consequential on prior viral infection by a single infectious agent but where multiple symptomologies may be present.
on which basis Long Covid as a set can contain no other sets, excepting those that are subdivisions of multiple symptomologies.
And where Long Covid as a set can itself be contained by a set of ‘all diseases’ and intermediate to that a set containing all infections, and intermediate to that a set containing all post viral infections.
Proposition (1) allows that ME/CFS is a distinct disease, separate from any precursor, initiator or other agent exogenous to the affected person. Research, treatment and cure(!) would be conceptually and practically independent of any other disease model.
Proposition (2) limits ME/CFS to being one of many potential conditions that follow ONLY a viral infection, that is viral infection is essential to the pathobiology and absent prior viral infection a person could not be said to have ME/CFS.
Proposition (3) limits ME/CFS to being one of many potential conditions that follow ONLY an infection, that is infection by an agent viral, bacterial, arthropodal etc is essential to the pathobiology and absent prior infection a person could not be said to have ME/CFS.
Proposition (4) is the current melange of multiple symptoms that are ascribe to post Covid 19 infection. It has no complete commonality with any of ME/CFS propositions. Its closest fit is Proposition (2) but the full list of Long Covid symptoms, and the published assessments of how those symptoms are grouped by case are at huge variance with the symptomology of ME/CFS. It is true that some cases fit but many do not. This is highly problematic where, for example a case of LC has no symptom of exercise intolerance and the usual advice regarding activity in ME/CFS would be inappropriate. A debate broadly settled around exercise in ME/CFS would need to be reopened if there were a simple equivalence made between LC and ME/CFS.
My view is that the paradigm of ME/CFS as certainly post infective needs to be resisted, we know far too little about the global patient population and we have no sound biopathology - defining ME/CFS as unequivocally a post infective, and specifically a post viral infective, condition risks excluding vital research directions. For the present the logical position must be that ME/CFS is not Long Covid, and while some people may receive an ME/CFS diagnosis following a Covid 19 infection, conflating the two is neither scientifically nor advocationally helpful.
Just a couple of points on numbers, using UK figures.
We have no sound numbers on incidence, recovery or mortality In ME/CFS but an incidence of 10,000 new cases a year pre Covid is probably not unreasonable. It might be that the 30,000 or so new cases of ME/CFS that have occurred since the start of the epidemic could all have been swept up in a catchall LC diagnosis but given that the MEA has a membership of less than 10% of the lower end of the UK PwME estimates, is it a viable strategy to reach out to a 2 million LC population the vast majority of whom do not have ME/CFS, whether of post viral cause or not ?
As to the medium term, the last UK figures (Feb 23) were suggestive of the reporting of PASC being relatively flat, implying that overall those who were going to experience PASC were already reporting those symptoms. I know that there is some data on people only experiencing PASC after multiple COVID infections but there is no large scale data around that and it's not unreasonable to suggest that Covid 19 is largely a one hit problem and that all those who are going to experience PASC have already done so, and that given wide scale first exposure and immunisation, then over time PASC is going to reduce to background levels that will be indistinguishable from a long term uprate in ME/CFS diagnosis.