[Carcinogenic fungi (author's transl)].

An association of carcinogenicity of toxic substances with fungi is shortly documented and discussed. The actions of the aflatoxin B1 (AFB1) are particularly examined; but it is emphasized that other carcinogenic mycotoxins are more frequent and therefore more dangerous. The man is unable to live estranged from them, because they are a great part in ecological systems and in the work-place, resulting a potentially major threat. The range of food and feedstuffs potentially affected has been increased in recent years. In effect contamination is liable to occur during transport, storage and food processing. These studies demand organized cooperation among mycologists, chemists, pathologists, pharmacologists, physicians. In Japan such extensive collaboration has a long history.