from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A cytolysin toxin produced by Clostridium tetani bacteria.
from The Century Dictionary and Cyclopedia
- A toxin produced by the tetanus bacillus, to which the hemolytic action of tetanus poison is due.
Sorry, no etymologies found.
I have yet to see any evidence that any putative "toxin" in vaccines is more dangerous than the toxins produced by actual infection with vaccine-preventable diseases, such as tetanospasmin, tetanolysin, diphtheria toxin and pertussis toxin.