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Pilz, J.F.* ; Köberle, M.* ; Kain, A.* ; Seidl, P.* ; Zink, A.* ; Biedermann, T.* ; Pilz, A.C.

Increasing incidence of Trichophyton tonsurans in Munich - a single center observation.

Mycoses 66, 441-447 (2022)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
BACKGROUND: Tinea capitis and tinea corporis are highly prevalent fungal skin infections, which globally are mainly caused by Microsporum canis and Trichophyton rubrum, respectively. While in the USA and Great Britain Trichophyton tonsurans is widely prevalent as a causative pathogen, it so far only plays a minor role in Germany. OBJECTIVES: Since the frequency of pathogenic species varies regionally and temporally, this study assesses the proportion of Trichophyton tonsurans infections in the dermatology department of a large university hospital in Germany from 2019 to 2022 and thoroughly characterizes the affected patient population. PATIENTS/METHODS: This retrospective study at the Technical University of Munich analyzes mycological culture results regarding the identified dermatophyte and infection site. Detailed patient and disease-related information on Trichophyton tonsurans positive patients was obtained. RESULTS: In 2022, 23 patients of 111 dermatophyte culture-positive patients tested positive for Trichophyton tonsurans. This accounted for 20.7% and represented a tenfold increase from 2.1% in 2019. Contact sports were only practiced by 21.7% of patients and no common hotspot or other linkage could be identified between the cases. Additionally, 47.8% of the patients received a systemic treatment, with 30.4% visiting the clinic more than three times. In 2022, 21.7% were diagnosed with a simultaneous infection of the capillitium and body, whereas this was only observed in 7.1% of cases in 2019 to 2021. CONCLUSIONS: This study suggests an increase of Trichophyton tonsurans infections via several routes of transmission.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Germany ; Trichophyton Tonsurans ; Dermatophytes ; Endemic ; Epidemiology ; Fungal Skin Infections ; Tinea Capitis ; Tinea Corporis; Tinea-capitis; Epidemiologic Trends; Dermatophyte; Gladiatorum; Outbreak; Infections; Wrestlers; Contamination; Children; School
ISSN (print) / ISBN 0933-7407
e-ISSN 1439-0507
Journal Mycoses
Quellenangaben Volume: 66, Issue: 5, Pages: 441-447 Article Number: , Supplement: ,
Publisher Wiley
Publishing Place Berlin
Non-patent literature Publications
Reviewing status Peer reviewed