[roenxi]

> the prevalence of Long COVID and other longer lasting changes.

That, and it will also be interesting to discover how different it is from the ordinary flu. I remember the last time I had a proper flu (well before COVID) it was months before I felt like I'd gotten over it even though the visible symptoms cleared up in a week or so.

The background rate of life-altering disease always seemed rather high to me. Life is far messier than what a "healthy/sick" binary can capture.