[Allergic fungi: importance of the standardization of fungal extracts and their application on clinical practice]. / Alergenos fúngicos: importancia de la estandarización de extractos de hongos y su aplicación en la práctica clínica.

Among the aeroallergens associated to asthma and allergic rhinitis, the fungi are a common cause of diagnostic and therapeutic problems. The wide variety and distribution of fungal species and the complex characterization of their allergenicity, is a complex item. The fungus extracts used to diagnose and treat sensitizations are frequently non effective, and different varieties of extracts are globally distributed. The standardization of commercial fungi extracts results extremely important as diagnostic procedure as well as to decide an efficacious and safe immunotherapy. This paper reviews important methodological steps to the standardization of fungi extracts, and finally the clinical use of these extracts.