| A | B |
| communicable disease | an illness that can spread and is casued by a pathogen |
| pathogen | an agent that causes disease |
| antibody | a substance made by certain white blood cells that attaches to a pathogen and makes it harmless |
| immunity | resistance to a disease through the presence of antibodies |
| antibiotic | a medicine that kills bacteria |
| allergy | a harmful reaction to certain substances |
| noncommunicable disease | an illness that cannot spread and is not cause by a pathogen |
| asthma | an allergy that affects the respiratory system and may result in breathing difficulty and wheezing |
| emphysema | a disease of the lungs in which air sacs are damaged |
| cardivascular disease | a disease of the heart or blood vessels |
| atherosclerosis | a disease in which fatty substances build up on the inside walls of arteries |
| cancer | the uncontrolled growth of abnormal cells |
| dependence | the need for a drug which may be a mental need, a physical need, or both |
| drug abuse | the intentional use of drugs for reasons other than health |