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Dermatomycoses Due to Nannizzia praecox (Formerly Microsporum praecox) in Germany: Case Reports and Review of the Literature

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Abstract

Nannizzia praecox, formerly known as Microsporum praecox, is a geophilic dermatophyte. Up to now 31 cases of human tinea have been reported in the literature, most of them with an inflammatory course. Three recent cases diagnosed in Germany within 1 year suggest that the fungus might be a more common cause of human dermatophytosis than reported so far. This might be based on the fact that N. praecox is often found in an equine environment and that horse riding is becoming more popular recently.

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Acknowledgements

We thank Boris Coonen, Mönchengladbach, for careful assistance in microscopic and cultural characterization of the strains and for MALDI-TOF MS analysis. Daniela Winkens, Mönchengladbach, has done DNA sequencing of M. praecox strain number three. We are grateful to Uwe Schossig, photographer from Leipzig, for excellent macroscopic pictures of the fungal colonies.

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Correspondence to Pietro Nenoff.

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Uhrlaß, S., Mayser, P., Schwarz, R. et al. Dermatomycoses Due to Nannizzia praecox (Formerly Microsporum praecox) in Germany: Case Reports and Review of the Literature. Mycopathologia 183, 391–398 (2018). https://doi.org/10.1007/s11046-017-0213-x

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