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  1. Disease | Definition, Types, & Control | Britannica

    Disease is any harmful deviation from the normal structural or functional state of an organism. It generally is associated with certain …

  2. What Is Disease? The Medical Science of Illness Explained

    Jun 1, 2025 · In medical science, disease is defined as a condition that disrupts normal bodily function and produces specific signs or …

  3. Disease - Wikipedia

    A disease is a particular abnormal condition that adversely affects the structure or function of all or part of an organism and is not …

  4. What Is Disease? Causes, Types, and How It Spreads

    Disease is any harmful change in the normal functioning of the body, whether caused by infection, genetics, lifestyle, environmental …

  5. Diseases Definition Types Causes and Prevention - Vedantu

    A disease is an abnormal condition that disrupts the normal structure or function of the body and produces specific signs and …

  6. WHO Definition of Disease - Public Health

    Aug 5, 2020 · In general, disease is defined as any harmful deviation from the normal structural or functional state of an organism, …

  7. Human disease | Characteristics, Causes, Symptoms, Treatment ...

    Disease, which can be defined at the simplest level as any deviation from healthy form and function, may either be associated with …

  8. Diseases - WHO

    A disease is a condition that negatively affects the health or normal functioning of an organism. It can be caused by a variety of …

  9. What is a disease? - PMC

    Most of us feel we have an intuitive grasp of the idea, reaching mentally to images or memories of colds, cancer or tuberculosis. But …

  10. DISEASE Definition & Meaning - Merriam-Webster

    6 days ago · The meaning of DISEASE is a condition of the living animal or plant body or of one of its parts that impairs normal …