Trichophyton indotineae infections and other severe or antifungal-resistant dermatophytoses
Dermatophytosis (ringworm, tinea, jock itch, athlete’s foot) is a very common and typically minor infection of the skin caused by dermatophyte fungi.1 In the past decade, severe or antifungal-resistant dermatophytoses have become a global public health concern, including in the United States.
The AAD has assembled resources on Trichophyton indotineae and other severe or antimicrobial-resistant dermatophytes. These resources include information sheets on disease recognition, diagnosis, and treatment options, but do not constitute a clinical guideline. The AAD/ILDS emerging diseases registry helps to gather information on severe or antimicrobial-resistant dermatophytosis cases.2 This content was developed by the Academy’s Emerging Diseases Task Force and Avrom S. Caplan, MD, FAAD.
Report suspected cases of antifungal-resistant dermatophytosis.
Access Academy guidance on recognizing signs of infection by T. indotineae.
See Academy information on prevention and treatment of T. indotineae.
See Academy guidance on TMVII other emerging dermatophytes of concern.
See Academy resources related to T. rubrum that is resistant to terbinafine.
Access a suggested algorithm for refractory or chronic dermatophytosis (PDF).
Alerts and brief updates
1. Notes from the Field: Trichophyton mentagrophytes Genotype VII — New York City, April–July 2024
References
Clinical Overview of Ringworm and Fungal Nail Infections. CDC. Updated 2/6/2024. Accessed 6/21/2024, https://www.cdc.gov/ringworm/hcp/clinical-overview/?CDC_AAref_Val=https://www.cdc.gov/fungal/diseases/ringworm/health-professionals.html.
Emerging Ringworm. CDC. Updated 4/24/2024. Accessed 6/21/2024, https://www.cdc.gov/ringworm/hcp/clinician-brief-resistant-infections/?CDC_AAref_Val=https://www.cdc.gov/fungal/diseases/ringworm/dermatophyte-resistance.html.
