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Bacillus cereus strain isolated from Demodex folliculorum in patients with topical steroid-induced rosaceiform facial dermatitis* * Work performed at the University Dunarea de Jos, Faculty of Medicine and Pharmacy; Central Reference Laboratory Synevo, University of Medicine and Pharmacy Carol Davila – Bucharest, Romania.

Abstract:

The aim of the study was to identify Bacillus species from the Demodex folliculorum of patients with topical steroidinduced facial rosaceiform dermatitis. Of the 75 patients examined, 20% had clinical spinulosis, while 18.66% had dermoscopic features of Demodex: follicular plugs and tails. Of the 17.33% positive patients identified upon microscopy for Demodex, samples for bacterial culture were plated on trypticase soy Colombia agar. Identification was performed by microorganisms grown method mass spectrometry. We identified a strain of Bacillus cereus.

Keywords:
Dermoscopy; Facial dermatoses; Mass spectrometry; Mite infestations; Receptors, steroid; Rosacea

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