1. Symptoms are structural and functional manifestations of the presence of a disease.

    Symptoms are structural and functional manifestations of the presence of a disease.

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  2. Non-infectious diseases are the ones which are produced by the factors other than living organisms and are incapable of spreading from one person to another.

    Non-infectious diseases are the ones which are produced by the factors other than living organisms and are incapable of spreading from one person to another.

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  3. Infectious diseases are diseases that are caused by pathogens and are capable of spreading from a diseased person to a healthy person.

    Infectious diseases are diseases that are caused by pathogens and are capable of spreading from a diseased person to a healthy person.

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  4. Acquired diseases are those diseases which one individual picks up after birth.

    Acquired diseases are those diseases which one individual picks up after birth.

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  5. Congenital diseases are the diseases found in an individual right from birth.

    Congenital diseases are the diseases found in an individual right from birth.

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