Depends on which vaccine but yeah 4 of them; 1) persistent spike protein production we don't know how long it's supposed to replicate its been years for some people 2) recent sequencing shows DNA contamination above GRAS limits 3) SV40 enhancer promoter 4) frame shifting phenomenon that's well known in mRNA gene therapy

I think these days it is not a propaganda, but a fact that many people had serious side effects or died after the vaccine. I didn't feel like my health decreased due to the vaccine, but I regret taking it anyway