**Serious disability: people losing 50% of their health, on scales such as WHODAS 2.0 or SF-36. 

I will try to select credible sources for each claim. Unfortunately, neither meta-analysis nor CDC use good epidemiology for estimating long covid cases (they're overestimates - I say this as a long covid patient), although UK's Office of National Statistics had pretty decent methodology.

https://academic.oup.com/aje/article/190/5/718/5903739?login=false

https://www.cidrap.umn.edu/h1n1-2009-pandemic-influenza/cdc-estimate-global-h1n1-pandemic-deaths-284000

I no longer bet on any of my own questions