There are three possible mode that Aspergillus could act as a disease agent, namely as a toxigenic, allergenic or pathogenic agent. Aspergillus as a toxigenic agent could not be applied in aspergillosis of the lung as the lesion are confined to the lungs while aflatoxin, which is produced by Aspergillus in agricultural products, will incuce hepatoma if ingested adequately. To differentiate whet…