This answer by Tony Fauci in a recent @sciencemagazine intervieiw by Jon Cohen is...something.
From the late 80s-on, Fauci repeatedly kneecapped efforts to study ME/CFS at NIH. This has been extensively documented, c.f. the book "Osler's Web."
Now he's saying if he began his career over he'd study...ME/CFS.
It's great he's finally realized the huge opportunity here to help a large group of sick people.
Shame it took him until after retirement to figure it out.
https://www.science.org/content/article/anthony-fauci-becoming-devil-and-warning-his-successor