this is pretty alarming....
https://www.timesofisrael.com/its-frightening-doctors-say-half-of-cured-cov...
There does not seem to be any data source for the number of people suffering what look like long-term injuries, which means we cannot really assess the actual dangers of the disease at this stage.
There are certainly going to be loads of people with post viral fatigue, hopefully it won't become CFS/ME.