This preprint says they have found a bat coronavirus which looks really close to SARS-CoV-2. It looks to me like that’s the origin!
Does this mean an end to speculation about SARS-CoV-2 coming from a Chinese lab? Oh hell no, because they have too much fun with conspiracy theories and because it’s not an exact match.
This detailed report from the UK government (from 1 April 2021) goes into detail about several ways to estimate the Long COVID rate, and has comparisons with other studies:
|Method/Study||4-8 weeks||12 weeks|
|Prevalence of any symptom at a point in time after infection||9.4%||5.0%|
|Prevalence of continuous symptoms after infection||11.4%||3.0%|
|Prevalence of self-reported long COVID||14.1%||11.7%|
|Prevalence among symptomatic infections||27.0%||6.7%|
|COVID Symptom Study||13.3%||2.3%|
|UK National Core Studies (severe)||3.0% to 13.7%||1.2% to 5.4%|
|PHOSP-COVID Study (post-hospitalization)||71%|
I don’t usually talk about other countries much, but this is interesting: the US Food and Drug Administration decided not to recommend boosters for everybody, but did decide to recommend boosters for people over 65.