Question

what is disease ? ...........

Answer 1

A disease is a particular abnormal condition that affects part or all of an organism not caused by external force and that consists of a disorder of a structure or function, usually serving as an evolutionary disadvantage..

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Answer 2

A disease is a particular abnormal condition that affects part or all of an organism not caused by external force[1][2] (see 'injury') and that consists of a disorder of a structure or function, usually serving as an evolutionary disadvantage.
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