Thanks for such a thorough post. I’m basically trying to figure out if all this evidence holds when you have received a booster and what is the evidence for that. One question: for all the studies that you shared showing long covid negative impacts, what is the percentage of those studies that focus on getting COVID-19 (a) without vaccines (b) with “initial” vaccines (c) with a booster? Eg maybe 20% of the studies are about assessing the impact of COVID when you haven’t received any vaccines, while 30% is about assessing the impact of COVID when you got the “initial” vaccines, and 50% all combined or something like that. I’d be curious about your rough assessment given that I’m sure this may take too long to do very much in detail.
There’s the study mentioned in another comment that shows promising-but-suspicious evidence that vaccines more-or-less eliminate long covid risk.
Katja may be able to tell you if she knows more about the particular studies she cites, but I’ve found that there is very little good research on long covid that is not mostly or entirely looking at unvaccinated cases. The Norwegian pre-print that Katja mentions explicitly excludes vaccinated people. I don’t see stats on the dates for the papers in the 81 study review article she cites, nor did I look at the dates on all 81 studies, but I did look at the ones with controls and they were all from 2020 or the first half of 2021, so pretty clearly too early to look at vaccinated covid. All of the high-quality studies I’m aware of are too early to include any substantial number of vaccinated cases.
This is unfortunate and somewhat preventable, but not too surprising. There were not many breakthrough cases before the delta waves, which didn’t take off until about 7 months ago. This doesn’t leave much time for researchers to track people who recover from acute cases and show months of persistent symptoms, then write a paper and get it published.
Thanks for such a thorough post. I’m basically trying to figure out if all this evidence holds when you have received a booster and what is the evidence for that. One question: for all the studies that you shared showing long covid negative impacts, what is the percentage of those studies that focus on getting COVID-19 (a) without vaccines (b) with “initial” vaccines (c) with a booster? Eg maybe 20% of the studies are about assessing the impact of COVID when you haven’t received any vaccines, while 30% is about assessing the impact of COVID when you got the “initial” vaccines, and 50% all combined or something like that. I’d be curious about your rough assessment given that I’m sure this may take too long to do very much in detail.
There’s the study mentioned in another comment that shows promising-but-suspicious evidence that vaccines more-or-less eliminate long covid risk.
Katja may be able to tell you if she knows more about the particular studies she cites, but I’ve found that there is very little good research on long covid that is not mostly or entirely looking at unvaccinated cases. The Norwegian pre-print that Katja mentions explicitly excludes vaccinated people. I don’t see stats on the dates for the papers in the 81 study review article she cites, nor did I look at the dates on all 81 studies, but I did look at the ones with controls and they were all from 2020 or the first half of 2021, so pretty clearly too early to look at vaccinated covid. All of the high-quality studies I’m aware of are too early to include any substantial number of vaccinated cases.
This is unfortunate and somewhat preventable, but not too surprising. There were not many breakthrough cases before the delta waves, which didn’t take off until about 7 months ago. This doesn’t leave much time for researchers to track people who recover from acute cases and show months of persistent symptoms, then write a paper and get it published.