From what I'm aware, the body disposes of the vaccine after it's done its job. It doesn't stay in your system.
People have a pretty poor understanding, generally, of what happens here.
You get injected with some messanger RNA encapsulated in a lipid. Having a basic understanding of what RNA is and how it's transcribed into DNA is necessary to get past this point:
So, you get the jab, and now a bunch of mostly muscle cells in your arm are full of mRNA that codes for the COVID-19 spike protein. This is quickly taken up by the transcription process, which exists to turn your OWN RNA into your OWN DNA and make copies of your chromosomes -- but the vaccine is more or less hijacking your cells in a manner
similar to what a virus does once it gets inside, except SARS-COV-2 creates complete copies of itself, and the vaccines only create copies of the single spike protein the rest of the virus uses to attach to cells.
Your body very quickly identifies these spike proteins as alien, and mounts an immune response. This is why some people feel crappy, and the extent of that crappiness varies with how strongly the immune system responds. It is interesting, but not that mysterious, that the degree of response someone has doesn't actually indicate much about how "well" the vaccine worked: someone who had a strong reaction to Pfizer #2 and someone who just had a sore arm, appear to have the same (insanely high) ~95% protection after 2 weeks.
So, the actual RNA? Yeah, that can't stick around the body for very long, by sheer virtue of the fact that
the way the body works is transcribing RNA into proteins, so, that's just gonna happen, and every spike protein created is going to be identified as "alien" and ripped apart (and even if they were not -- single proteins with no ability to reproduce are going to have a pretty limited lifespan in a living human).
Okay, so, the idea that the RNA from the vaccine "sticks around" we can easily put to rest because it's not physically possible. What about the
other stuff in the vaccine?
FDA.gov said:
The Pfizer-BioNTech COVID-19 Vaccine includes the following ingredients: mRNA, lipids ((4-hydroxybutyl)azanediyl)bis(hexane-6,1-diyl)bis(2-hexyldecanoate), 2 [(polyethylene glycol)-2000]-N,N-ditetradecylacetamide, 1,2-Distearoyl-sn-glycero-3- phosphocholine, and cholesterol), potassium chloride, monobasic potassium phosphate, sodium chloride, dibasic sodium phosphate dihydrate, and sucrose
First and foremost it's worth noting: there are zero heavy metals on this list, additionally, the total dose size is 0.45 ml and the vast majority of that is lipids that encapsulate mRNA, so the actual doses of everything on this list are tiny.
Sodium chloride, potassium chloride, sucrose, dibasic sodium phosphate dihydrate and monobasic potassium phosphate are all things which exist in USP food grade forms and are, variously, commonly used in prepared foods etc. I have a giant bottle of potassium hydroxide downstairs that I use to pH buffer my cannabis.
The lipids are proprietary magic that Pfizer is likely sitting on patents to, and so this is where we're getting into "human health and safety data over the long term may not exist yet". For instance one of the compounds on that list is also known as ALC-0315 and has this very minimal Wikipedia page:
https://en.wikipedia.org/wiki/ALC-0315
You can read the UK's safety assessment of the lipids here:
https://assets.publishing.service.g...162b2__UKPAR___PFIZER_BIONTECH__15Dec2020.pdf
More or less, I wouldn't necessarily bet on any of these things being as safe to inject as, like, PEG which has been around for 50+ years, but I also wouldn't bet much on them being any more dangerous.
It's certainly possible that something in here is
not 100% cleared by human metabolism instantly and deposits in the liver or whatever. So what? Every time you go outside and walk down the street, you're inhaling trace petrol fumes that are bringing cadmium and god knows what else into your body -- we're constantly being exposed to known carcinogens and toxins, and generally the body does a decent enough job cleaning them out that life expectancy went up alongside the mass adoption of gasoline engines.
On the other hand -- it's well known that some people who get actual COVID-19, do have "stuff in their bodies" long term or permanently, this is called LONG COVID-19, it happens to a lot of people, the cause is the body not actually fully fighting the infection off, and many of these people have shown dramatic improvement only after being vaccinated.
Long Covid symptoms ease after vaccination, survey finds
This is mostly academic for me at this point; nothing left to wonder or worry about, I already got my Pfizer #2, and despite having a general aversion to people making silly decisions for unscientific reasons, the odds of any person on
this forum being unvaccinated and also close enough to me to put my kids at risk is close to zero.
From a compassion point of view, I do think everyone on this forum should get vaxx'd, simply because the data appears pretty equivocal that "COVID-19 vaccines are generally safe and well tolerated including audiological side effects, whereas COVID itself carries something like a 15% risk of hearing loss and tinnitus". That's not a controversial point at all and anyone who is disputing it in June 2021 is not arguing from a fact based perspective.