Note that the tetanus vaccine actually targets the toxin itself, not the bacteria that produces the toxin: https://www.who.int/biologicals/vaccines/tetanus/en/

Note that the tetanus vaccine actually targets the toxin itself, not the bacteria that produces the toxin: https://www.who.int/biologicals/vaccines/tetanus/en/ https://www.who.int/biologicals/vaccines/tetanus/en/ Anyway, it's a myth that you can't develop antibodies to tetanus/tetanus toxin naturally. Lots of studies have found otherwise, finding tetanus antibodies in both humans and animals that haven't been vaccinated: https://pubmed.ncbi.nlm.nih.gov/1092755/ https://pubmed.ncbi.nlm.nih.gov/1092755/ It's just not a very relevant fact, as tetanus is deadly, and the tetanus vaccine is cheap and works well. In fact, there's evidence the vaccine works even better than we thought, and booster shots may not be needed: https://academic.oup.com/cid/article/72/2/285/5741633 https://academic.oup.com/cid/article/72/2/285/5741633