database contains hundreds of cases of accidental mix-ups between adult and pediatric products used to immunize patients against diphtheria, tetanus, and pertussis (whooping cough). Several ...

The tetanus shot is such a vaccine. Tetanus is a disease caused by toxins created by the bacteria Clostridium tetani. The vaccine conditions the body's immune system to eliminate these toxins.

After they had been actively immunized, and with serum antitoxin levels of 0.007 to 0.01 American unit per milliliter, they challenged themselves with "2–3 fatal doses" of tetanus toxin, which ...