@tracy_tysonmd: Replying to @Caffeine&Chaos “Why haven’t they injected different doses of formaldehyde into babies just to see what happens?” Because that would be unethical, unnecessary, and scientifically impractical. Toxicology doesn’t require deliberately exposing infants to potentially harmful doses of a substance. Instead, scientists can study how a substance is produced, metabolized, cleared, and distributed in the body and use pharmacokinetic modeling to estimate exposure. That’s exactly what researchers did in a 2013 vaccine study: they modeled infant exposure to formaldehyde from vaccines and compared it with the formaldehyde infants naturally produce and already have circulating in their bodies. Good science isn’t defined by doing the most extreme experiment imaginable. It’s defined by using the best study design to answer the question safely and accurately. Not having an unethical experiment ≠ not having safety data. #Vaccines #VaccineSafety #Formaldehyde #Pediatrics #Toxicology

Tracy Tyson MD
Tracy Tyson MD
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Monday 21 September 2026 15:22:32 GMT
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nikkie_the_np
nikkie_the_np | NP Educator :
Who on earth would volunteer their child for a study knowing they’re TRYING to poison them 🤷‍♀️🤦‍♀️I can’t even anymore 🙄
2026-09-21 16:41:32
441
rayrachelsandbergerg
rayrachelsandbergerg :
They learned that placebo controlled double blinded studies are the gold standard and inferred that this is the *only* way for science to advance. Obviously this is extremely flawed, all-or-nothing thinking.
2026-09-21 21:19:00
151
finchie623
Sarah Finch :
These are also the people who think the only real placebo is saline.
2026-09-21 22:52:01
4
gingerreckoning
Amelia Antrim :
I beg people to learn about good clinical practice and ethics and research. As someone who works in clinical research, I’m dying out here!
2026-09-21 19:21:04
273
nadianikulin
Nadia Nikulin, PhD :
An incredible response to a gotcha comment
2026-09-21 21:35:17
36
probably.not.ai
probably.not.ai :
Love this content. Might be worth a lesson on IRBs.
2026-09-21 19:19:27
23
joanlaura632
joanlaura632 :
I just love it when educated people share their knowledge in a way anybody can understand, you are awesome!
2026-09-21 17:05:08
91
xkazzoo
xkazzoo :
So many of the people in our communities are uneducated and taught to fear knowledge. It is a failure on the part of our leadership and the people that allowed them to lead.
2026-09-21 20:04:09
39
happypillsrx
HappyPillsRx :
Hell yeah!!! You just popped up on my for you with no context but this was a fucking beautiful explanation!
2026-09-21 21:50:55
7
sandyhango
Sandyhango :
What a wild comment!!!
2026-09-21 19:17:43
9
darthdrpete
Doctor Pete MD FAAP :
Yikes 😬 Caffeine&Chaos needs some Bioethics
2026-09-23 16:55:27
1
substantionigra
Substantion_Igra🐅🐈‍⬛ :
Thank you for setting her straight in the real world.
2026-09-21 23:43:12
1
boyskissing.com
Miguel Rosas!! :
It’s similar to like how we don’t know how much etoh is safe do consume during pregnancy bc why would we ever test it?
2026-09-21 23:56:37
3
rebeccaenglish66
Becca :
I love hearing all the specifics on subjects I only know very basic information. It's always mind blowing!
2026-09-21 22:29:05
1
user72877152091714
HilBean :
👏👏👏 Mic drop
2026-09-22 10:36:56
1
handmadekathy21
Handmadekathy :
Great explanation
2026-09-21 23:25:26
2
thealasildorian
Amy Crittenden❌ :
2026-09-21 15:28:34
5
wrexy_trex
Wrexy-trex :
people don't realize how much we know in medicine is from the terrible things done during WW2 and other wars. like the information is valuable but the only way to get that information is inhumane so of coarse we don't study it.
2026-09-22 00:06:39
7
pnwmizzie
Mizzie 🐌 :
They really want scientists to experiment on infants?? WT literal F?
2026-09-21 20:29:12
10
gemini.cricket2
TikTokLicksBoot :
It takes a pretty sick mind to even come up with an idea like that.
2026-09-21 19:59:54
7
meowamine
meowamine :
We also KNOW the whole vaccine, as packaged and formulated, is safe, effective, and performs at least as well as previous versions. Statistics doesn't parse out the antigen effect from the adjuvants, preservatives, saline, or even the needle prick itself. But if he wants a study, he's more than welcome to fund it.
2026-09-21 16:51:00
23
tracy_tysonmd
Tracy Tyson MD :
https://pubmed.ncbi.nlm.nih.gov/23583892/
2026-09-21 15:25:01
16
eanderson119
Elizabeth :
These anti-VAX idiots have absolutely no idea what ethics actually is in clinical trials. I say this as someone who runs oncology clinical trials for a living.
2026-09-22 15:46:23
1
fen.cottages
fenwitch.cottages :
the irony of them wanting babies to be given study doses to prove they shouldn't be given any doses😂
2026-09-21 22:11:51
3
cpp2393
cpp2393 :
I know you're using a collective we in the sense of "humanity" and "the healthcare and health science community" but I honestly think a lot of the disconnect is that "we All" decidedly did NOT know that the body naturally makes and processes formaldehyde. Or that when you see a brain floating in a jar THATS NOT EVEN FORMALDEHYDE EITHER😂
2026-09-21 21:51:52
0
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