Kraken wrote: Mon Oct 31, 2022 9:15 pm
Those who have long covid don't continue testing positive for covid, do they?
No. Long Covid by definition (the loose one we're using) happens after COVID illness is gone. Specifically, they stop testing positive for a live COVID infection but have a myriad of symptoms that persist for a wild range of time periods. The symptoms could be similar to what they were experiencing with COVID, though more commonly they seem to be different.
I'm still on the fringes of it all (reading as much as I can) but the leading theories all seem to point to the virus having longer term impacts on organs or systems, long after the initial fever/congestion/malaise passes, possibly related to where the virus ends up after it gets into your body and yet-to-be determined risk factors increase your chances of winning the unlucky lottery (most recent study is ~15% of adults that tested positive for COVID-19 develop
long Covid), seemingly unmitigated by vaccinations or prior exposures. The rub is we're still not testing enough (STILL!) to really get a sense of how many people have/had COVID-19 vs those that are struggling with chronic issues - our sample is distorted.
Interestingly, in terms of risk, this is one of the first studies I'm seeing where they're starting to dial in:
This study suggests that long COVID is prevalent and associated with female gender and older age, while risk may be diminished by completion of primary vaccination series prior to infection.
I would expect this to continue over the next few years.