The vaccine establishment does not show the slightest interest in answering any of these questions. They are busy pretending the questions don't exist. Trusting these people would be suicidal.
Dangerous nano-particles contaminating many vaccines: groundbreaking study
"The Lung," Second Edition, 2014: "Nanoparticles [are] comparable in size to subcellular structures...enabling their ready incorporation into biological systems."
A 2017 study of 44 types of 15 traditional vaccines, manufactured by leading global companies, has uncovered a very troubling and previously unreported fact:
The vaccines are heavily contaminated with a variety of nanoparticles.