Dermatophytosis: An Update on Global Epidemiology

Area of Science:

• Mycology
• Public Health
• Dermatology

Background:

• Dermatophytosis, a fungal infection affecting 20-25% of the global population, presents significant public health challenges.
• The condition causes morbidity and impairs quality of life through skin lesions, hair loss, and nail degradation.
• Accurate diagnosis and epidemiological data are limited, hindering effective global management.

Purpose of the Study:

• To provide an updated review of the global epidemiology of dermatophytosis and dermatophytes.
• To discuss the taxonomy, pathogenesis, virulence factors, clinical manifestations, and antifungal therapies.
• To highlight emerging challenges, such as drug resistance and the need for improved surveillance.

Main Methods:

• Comprehensive literature review of global dermatophytosis epidemiology.
• Analysis of taxonomic classifications and pathogenic mechanisms of dermatophytes.
• Synthesis of current data on clinical presentations and antifungal treatment outcomes.

Main Results:

• Trichophyton species, especially T. rubrum, T. mentagrophytes, and T. interdigitale, remain the most common pathogens.
• Trichophyton indotineae is emerging globally, exhibiting terbinafine resistance and treatment failure.
• Microsporum canis and M. audouinii are significant non-Trichophyton pathogens, particularly for scalp infections.

Conclusions:

• Global vigilance is crucial due to the dissemination of dermatophytes and emerging resistant strains.
• Discrepancies in fungal identification and reporting necessitate improved epidemiological surveillance strategies.
• Enhanced management strategies are required to address the global burden of dermatophytosis.