Human infections with Microsporum gypseum in Denmark

Area of Science:

• Dermatology
• Mycology
• Infectious Diseases

Background:

• Microsporum gypseum is a geophilic dermatophyte known to cause superficial fungal infections.
• Data on M. gypseum infections in Denmark, particularly over an extended historical period, are limited.
• Onychomycosis, a fungal infection of the nail, can be caused by various dermatophytes, including M. gypseum.

Purpose of the Study:

• To analyze the epidemiological characteristics of Microsporum gypseum infections in Denmark between 1933 and 1977.
• To describe the sex ratio, age distribution, and common anatomical locations of these infections.
• To report and review cases of M. gypseum onychomycosis, including a specific pediatric case.

Main Methods:

• Retrospective review of 90 documented cases of Microsporum gypseum infections.
• Analysis of patient data including age, sex, and affected anatomical sites.
• Literature review of M. gypseum onychomycosis cases.

Main Results:

• Ninety cases of M. gypseum infection were identified in Denmark from 1933-1977.
• The study details the observed sex ratio, age distribution, and anatomical distribution of infections.
• A specific case of M. gypseum onychomycosis in a one-year-old child is presented and discussed.

Conclusions:

• Microsporum gypseum infections presented specific epidemiological patterns in Denmark during the study period.
• Onychomycosis due to M. gypseum, though less common, can occur in pediatric populations.
• Further research into M. gypseum epidemiology and clinical presentations is warranted.