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Most plant diseases are caused by fungi, bacteria, and viruses. Although the term disease is usually used only for the destruction of live plants, the action of dry rot and the rotting of harvested crops in storage or transport is similar to the rots of growing plants; both are caused by bacteria and fungi.
Fungi cause many kinds of diseases in plants and animals. Diseases in humans caused by fungus infection range from skin disorders to serious illness. Fungal diseases like blastomycosis, coccidioidomycosis, and candidiasis in humans often attack the lungs.Thrush, a fungal disease of the throat, is found mainly in infants. Histoplasmosis-is caused by the fungus Histoplasma capsulatum, it is found in soil fertilized by bat droppings. 2  It is most prevalent in the Ohio River and Mississippi Valley. 3  This illness is also known as Cave disease and Darling's disease. 4  The illness presents with flu-like symptoms and can resemble tuberculosis.