I'm happy to be corrected as it is not my area of expertise but I don't believe it has been proven to be anything to do with the new delivery method (mRNA vaccines) causing the extremely serious side effects in a small percentage of people that received the covid vaccines.

Wasn't it more to do with the use of the spike protein itself as an immune trigger? As in that spike protein comes with its own degree of harm to the body regardless if its natural infection or vaccine?

Serious adverse events can happen with any vaccine but the general wisdom is that it affects such a small percentage of people that the risk VS reward still leans in favour of mass vaccination, until it doesn't.

[–] Shake747@lemmy.dbzer0.com -2 points 1 year ago

From what I understand, you're correct that the spike protein is what caused the issues, usually to people's hearts if they had an adverse event. The mRNA part is what instructs your cells to produce those spike proteins, which your immune system's antibody's should bond to in a similar way that it would with the corona virus