For other uses, see Disease (disambiguation). "Maladies" redirects here. For the 2012 film, see Maladies (film). "Ailment" redirects here. Not to be confused with Aliment. "The Sick Girl", 1882, National Gallery of Denmark A disease is a particular abnormal condition that adversely affects the structure or function of all or part of an organism and is not immediately due to any external injury.[1]
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