机会真菌多为腐生菌或植物致病菌。在这方面既往被认为是污染菌,而不予以注意和研究。人类真菌感染,大部分是皮肤真菌病为代表的癣症。自从广谱抗生素、皮质激素、免疫抑制剂、抗肿瘤药物等的广泛应用以来,以及烧伤、器官移植、人工心脏瓣膜装置等手术的开展,深部(内脏)真菌病的发病率有 Most opportunistic fungi saprophytic bacteria or plant pathogens. Previously, it was considered as a contamination bacterium in this respect, without being noticed and studied. Human fungal infections, most of which are ringworm typified by dermatophytosis. Since the widespread use of broad-spectrum antibiotics, corticosteroids, immunosuppressive agents, anti-cancer drugs and the like, as well as in operations such as burns, organ transplants and prosthetic heart valve devices, the incidence of deep (visceral) mycosis has been