I certainly agree with what you are saying,
@CFS_for_19_years, and in fact I just recently posted
here about my experiences with a chronic recurring kidney / urinary tract infection (UTI) greatly increasing my ME/CFS fatigue levels on the days in which this infection flared up.
In fact originally I placed chronic UTIs in the
roadmap as a possible factor that might be present in ME/CFS patients, and which might worsen ME/CFS symptoms. But I later removed this, because I could not find any evidence of UTIs being more common in ME/CFS. Though UTIs are well-known to cause fatigue even in the general population.
At present the roadmap contains a section on
sinusitis (sinus infection / inflammation) as an exacerbating factor in ME/CFS, and also a section on hidden
jaw bone infections being a causal or exacerbating factor of ME/CFS.
You are right that the sinusitis could probably be moved up higher in the roadmap, perhaps placed in round 2, which lists the common comorbidities of ME/CFS. Jaw bone infections I believe are rare, so that's best left in round 4 I think (the 4th round lists the rarer ME/CFS causal or contributory factors).
The roadmap also currently lacks a section on the various causes and appropriate treatments of sinusitis in ME/CFS patients. Just writing such a sinusitis treatment section would be weeks of research and work (everything goes slowly when you brain fog).
What I would like to know is what other type of chronic or recurring infections might be common in ME/CFS patients, which may worsen the ME/CFS symptoms. And what places in the body can host such infections.
The roadmap I try to keep evidence-based, so I'd need links to published studies before I can include anything (or at the very least, a link to some good anecdotal accounts or surveys).