Months and months ago, when COVID-19 first broke, one of the most concerning aspects of the disease was the possibility that it might produce long-term chronic fatigue, based on a comparison with SARS (apparently a large percentage of the people who had SARS in 2003, had chronic fatigue symptoms years later, though I can't find the paper right now), plus some other evidence.
At the time, we didn't have much data, but now we're a few months into the pandemic. Obviously, we won't know how long lasting it is, but what are the updated risk estimates of chronic fatigue from COVID?
Fatigue that lasts 2-3 weeks after the worst symptoms are over is common with essentially all bad viral infections - post-flu fatigue is common for example (can't find any good statistics on how common). So, I don't know if 1/3 reporting fatigue 2 to 3 weeks after tells us anything useful about how common post-covid fatigue lasting months afterwards is