| A | B |
| Infectious | can be passed from one person to another |
| Disease | the breakdown in the structure or function of a living organism |
| Carrier | a person who is contagious, but never develops symptoms of the disease or develops the symptoms only after a lengthy period |
| Epidemiologists | scientists who try to stop the spread of a disease |
| Vecor | an organism that spreads disease-causing germs to humans, usually without getting sick itself (typically animals) |
| Quarantine | isolation to prevent the spread of a disease |
| Magnify | enlarge |
| Field of View | the amount and detail of a material as seen under a microscope. |
| Microbe | creatures that are too small to be seen with the human eye, they cause most infectious diseases |
| Cell | the basic units of structure and function of living things |
| Multicellular | organisms containing more than one cell |
| Unicellular | organisms that contains only one cell |
| Respiration | using oxygen to break down sugar from food, which provides energy and releases carbon dioxide as waste |
| Resistant | a small number of bacteria in any population that is not affected by the antibiotic quickly |
| Full Course | taking all of the given antibiotic, so the bacteria will not survive |
| Emerging Diseases | diseases that are new among the human population |
| Immune System | the system that protects your body from invading microbes |