A large number of these infections are simply too recent for "long haul" Covid to have settled in.

There's also not a globally accepted definition of the syndrome yet, so it won't show up in stats.

If you go by "still experiencing at least one symptom after 3 months", it's closer to 10-20% than 1% : https://twitter.com/Dr2NisreenAlwan/status/13775492575703162...

Another study found that around a third of these 10-20% consider it debilitating (significantly affects their daily lives)

How did that study control for the effects of being locked inside for a year or losing your job? Or past diagnosis with hypochondriac syndromes like fibromyalgia?

Where did you read that number (2B+ Covid infections)?

Assume covid tests find about 1 out of 5 total infections

In most countries they are probably dead.

It's 200 million or 0.2 billion

According to the CDC, the US has had an (estimated) 100M+ infections as of mid-April[0] and Europe had 50M+ as of last week.[1]

I don't know the appropriate way to extrapolate out but we're well past 200M globally.

0: https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/burd...

1: https://graphics.reuters.com/world-coronavirus-tracker-and-m...