Isolation of keratinophilic fungi from floors in Roman kindergarten and secondary schools
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We examined the dust collected from the floors of forty classrooms, twenty in kindergarten schools (children aged 2–5) and twenty in secondary schools (students aged 11–14) in order to determine the diffusion of keratinophilic fungi in respect to such different factors as human presence and children's age. In the kindergarten schools 268 colonies of keratinophilic fungi were isolated: 50 were Microsporum, 6 Trichophyton and 212 Chrysosporium species. Members of the Chrysosporium genus were found the widely diffused. It is interesting to note the isolation of M. gypseum in two schools. In the secondary schools 847 colonies of keratinophilic fungi were isolated: 727 were Chrysosporium, 81 Microsporum, 38 Trichophyton and 1 Epidermophyton species. Again the Chrysosporium species were the most widely diffused. It is remarkable to point out the isolation of pathogenic species such as Epidermophyton floccosum, Microsporum canis, Microsporum gypseum and the rather rare Microsporum vanbreuseghemii.
KeywordsDust Canis Pathogenic Species Human Presence Keratinophilic Fungus
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