| A | B |
| anaphylactic reaction | A life threatening allergic reaction |
| malaise | A general overall feeling of weakness or discomfort. |
| Antibodies | Proteins that are produced and search for the antigen. |
| hypersensitivity | Develops the first time that a person is exposed to an antigen. It means that an allergic reaction will occur. |
| Basophils | One of the types of cells that antibodies attach themselves to. |
| Histamine | What is released by the mast and basophis and causes broncoconstriction, vasodilation and capillary leakage. |
| antigens | foreign substances that may cause an allergic reaction. |
| Penicillin | The most common cause of an anaphylactic reaction. |
| Epinephrine | The most common treatment/drug for moderate to severe allergic reaction. |
| Dizziness and chest pain | Possible side effects of epinephrine. |