| A | B |
|---|
| white blood cell (WBC) | blood cell that helps destroy pathogens |
| antibody | a molecule produced by white blood cells to attack invading organisms such as bacteria and viruses |
| immunity | protection against infection |
| vaccination | taking a vaccine to prevent a disease from catching a disease they never had |
| antiseptic | a substance which inhibits the growth and development of microorganisms |
| *antigen | a substance that stimulates the production of antibodies |
