[murgindrag]

I don't think this represents most studies, but the far lower end. If we're going to cherry-pick, here's one which shows more than half of kids show at least one symptom 120 days out:

https://www.medrxiv.org/content/10.1101/2021.01.23.21250375v...

My best guess is that it's around 10%-20% -- that's sort of in the middle where studies land.

I suspect a big part of the problem is which child and which COVID. I would speculate alpha, delta, mu, etc. all have different rates.

I think the second question is the distribution of symptoms. None of the studies are sensitive enough to pick up a 5% loss in IQ, lung capacity, or similar. Do some kids get it and others don't? Or is there a bell curve of symptoms, and we're picking up kids with the more extreme versions?

If it's a bell curve, it's pretty scary. All kids could be harmed to the level of e.g. lead exposure, and we wouldn't notice.