That's interesting. It looks like there is a lot of conflicting information on the background rate. And even the UK rate in the quote is higher than the Germany's, yet the article I linked to from the wiki is saying Germany's is higher, and that the estimates on background level vary wildly. Although if it is multiple times the normal rate, then this would not be an example of sensitive reporting/detection anyways (not to mention that EU reporting takes place outside of the VAERS system).
"Do I understand correctly that there is no mechanism specific to how the mRNA vaccines work?"
No. Covid does not add a spike protein to an existing cell. It replicates an entire covid cell. So you have covid virus with a spike and a bunch of other covid proteins if you have covid. Or you have a human cell with a partial spike and all the normal human cell proteins. The immune system usually codes off of, or attacks, multiple proteins. It's possible the immune system will identify the spike and some of the normal cell proteins. A similar sort of mimicry is theorized to occur when the proteins in a virus are similar enough to a human protein.
"Do I understand correctly that there is no mechanism specific to how the mRNA vaccines work?"
No. Covid does not add a spike protein to an existing cell. It replicates an entire covid cell. So you have covid virus with a spike and a bunch of other covid proteins if you have covid. Or you have a human cell with a partial spike and all the normal human cell proteins. The immune system usually codes off of, or attacks, multiple proteins. It's possible the immune system will identify the spike and some of the normal cell proteins. A similar sort of mimicry is theorized to occur when the proteins in a virus are similar enough to a human protein.
https://www.nytimes.com/1996/12/31/science/virus-s-similarit...