BCCM/IHEM is a collection of yeasts and moulds of medical and veterinary interest. It gathers almost 15000 strains representing more than 350 genera and 1200 species of Ascomycetes, Basidiomycetes and Zygomycetes. The majority are human and animal pathogens, allergenic strains, mycotoxin producing species or various contaminants, isolated from clinical cases or from the human environment in general.