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| | Disease - New World Encyclopedia Preview |
 | | Disease may be due to such factors as genetic defect, infection, diet, physical or mental stress, the environment, or a combination of these factors. |
 | | Sometimes the term disease is used broadly to include injuries, disabilities, syndromes, symptoms, infections, deviant behaviors, and atypical variations of structure and function, while in other contexts these may be considered distinguishable categories. |
 | | However, many conditions have been identified, yet continue to be referred to as "syndromes.” Furthermore, numerous conditions of unknown etiology are referred to as "diseases" in many contexts. |
| www.newworldencyclopedia.org /preview/Disease (2239 words) |
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