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Has been associated with hypersensitivity pneumonitis. Common cause of extrinsic asthma (immediate-type hypersensitivity: type I) (26). May be related to bakers asthma (17). Acute symptoms include edema and bronchiospasms, chronic cases may develop pulmonary emphysema (26).
Potential Toxin Production
Alternaria alternata is capable of producing tenuazonic acid and other toxic metabolites which may be associated with disease in humans or animals (17).
Conidia dimensions 18-83 x 7-18(5). Large spore size 20-200 x 7-18 suggest theat the spores from this fungi will be deposited in the nose, mouth, and upper respiratory tract (17).