Earlier quoted context omitted.
> until more is known about long term effects I'm curious about this line of reasoning. We've been testing mRNA treatments for other diseases for about 25 years now. The approach was abandoned for gene therapy because the effects weren't long lasting. We have follow up data on people who participated in those studies, and to my knowledge there aren't any documented negative long term effects. We know what the vaccine…
The other ingredients in the vaccine aren't anything special. Polyethylene glycol, for one, has never been used before in an approved vaccine. It is thought to be the cause of some rare anaphylactic reactions. There are dozens of other compounds in the Pfizer vaccine; the reason for them being there and their effects are, for the most part, a trade secret.
[1] https://www.sciencemag.org/news/2020/12/suspicions-grow-nano...