| A | B |
|---|
| allergen / antigen | the substance that causes a reaction |
| allergy | excessive response by the immune system |
| antibody | substance produced to counteract a specific antigen / allergen |
| antitoxin | immune response to counteract toxins |
| attenuated | weakened |
| immune | having defenses to prevent infection |
| immunization | artificial creation of immunity |
| phagocytosis | eating up / ingesting |
| serum | liquid part of blood |
| toxin | poisonous substance |
| toxoid | something resembling a toxin |
| vaccination | artificial means to achieve immunity to specific diseases |
