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Pyroglyphid mites, xerophilic fungi and allergenic activity in dust from hospital mattresses

B v d Lustgraaf, W Jorde

    Acta Allergologica
    |December 1, 1977
    PubMed

    Insights

    Mattress dust analysis revealed Demodex and pyroglyphid mites. Cotton-horsehair mattresses showed higher allergenicity than polyester-foam, with fungi present in some samples.

    Area of Science:

    • Environmental Science
    • Allergology
    • Microbiology

    Background:

    • Mattress dust harbors biological allergens like mites and fungi.
    • Different mattress materials and ages may influence allergen presence and activity.

    Purpose of the Study:

    • To analyze mattress dust for mites, xerophilic fungi, and allergenic activity.
    • To compare allergen content based on mattress composition and age.

    Main Methods:

    • Dust samples from various mattresses were analyzed.
    • Mites (Demodex, pyroglyphid) and fungi (Aspergillus, Eurotium) were identified.
    • Allergenic activity of dust was assessed.

    Main Results:

    • Demodex (58.2%) and pyroglyphid mites (36.6%) were abundant.
    • Pyroglyphid mites were found in older polyester-foam mattresses but not cotton-horsehair or new polyester-foam.
    • Cotton-horsehair mattress dust exhibited significantly higher allergenic activity.
    • Xerophilic fungi were isolated from 3 out of 31 mattresses.

    Conclusions:

    • Mattress material significantly impacts allergenic potential.
    • Older polyester-foam mattresses may harbor specific mite species.
    • Disinfection might reduce mite and fungal presence in mattresses.

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