| A | B |
|---|
| pathogen | An organism that causes disease |
| infectious disease | A disease that can be passed from one organism to another |
| toxin | A poison produced by bacteria that can damage cells |
| inflammatory response | Part of the body's response against pathogens, in which fluid and white blood cells enter tissues to destroy pathogens |
| phagocyte | A white blood cell that destroys pathogens by engulfing them and breaking them down |
| immune response | Cells of the immune system target specific pathogens |
| lymphocytes | Cells of the immune system that can recognize and attack specific pathogens |
| antigen | A molecule on a cell that the immune system can recognize as either part of the body or from outside the body |
| B Cell | A lymphocyte that produces antibodies that recognize specific antigens |
| T Cell | A lymphocyte that identifies pathogens and causes B Cell to make antibodies |
| AIDS | Acquired Immunodeficiency Syndrome |
| HIV | Human Immunodeficiency Virus |
| immunity | The ability of the immune system to destroy pathogens before they can cause disease |
| active immunity | Immunity that occurs when a person's immune system produces antibodies in response to a pathogen |
| vaccination | The process where non pathogenic antigens (vaccines) are introduced into the body to stimulate production of antibodies |
| vaccine | A substance used in a vaccination that is made up of pathogens that have been weakened or killed that trigger the formation of antibodies |
| passive immunity | Immunity caused by the introduction of specific antibodies into the body |
| antibiotic | A chemical that kills bacteria or slows their reproduction with out harming the cells of humans |
| antibody | A chemical produced by a B Cell that binds to a specific kind of antigen |
