A Pfizer study showed radio-labeled lipid nanoparticles in various organs of rats given 10 times the human dose of their mRNA vaccine.

“So, the rat was given 50 micrograms of the Pfizer-BioNTech vaccine. So, if you were to do the calculation for a rat equivalent dose, so if you want to give the rat what humans actually get, an equivalent dose based on their body mass, it would be more like 4.86 micrograms. So they got 50. That's essentially 10 times. Okay. And this was done for a reason of, "Okay, what happens when we give them a huge amount of the vaccine?" Well, what was found...the lipid nanoparticle that contains the mRNA was radio-labeled. It's like a tag that you can visualize things. And that radio-labeled tag was found in other organs.”