The “germs” are first of all not always dead. They might be weakened or attenuated or dead. read more
Toxoid vaccines . prevent diseases caused by bacteria that produce toxins (poisons) in the body. In the process of making these vaccines, the toxins are weakened so they cannot cause illness. Weakened toxins are called toxoids. When the immune system receives a vaccine containing a toxoid, it learns how to ight of the natural toxin. read more