Trichophyton indotineae infections and other severe or antifungal-resistant dermatophytoses
![Banner for antifungal-resistant dermatophytes](http://images.ctfassets.net/1ny4yoiyrqia/2XYdCZI0kYMHJfdJEPrP3R/349b2e2b998649370403cce6fef0b34f/24-489-SQ-Anti-Fungal-Resistant-Dermatophytes-banner.png)
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 Academy’s Emerging Diseases Task Force 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
![Image of a man's back showing signs of infection by Trichophyton indotineae](http://images.ctfassets.net/1ny4yoiyrqia/3D3aYpNdtH2DtZWVZke6mp/ee4b01af6798df73f6d3cbe41a5aa15c/Ti_2-r1.jpg?w=450&h=300)
Report suspected cases of antifungal-resistant dermatophytosis.
![Card image for Recognizing Trichophyton indotineae](http://images.ctfassets.net/1ny4yoiyrqia/4mEYGDPYkMFgA6CmTwBEVg/59050460eb0fa344591daf4c6103cefb/Emerging-disease-t-indotineaea-01-r2.jpg?w=450&h=300)
Access Academy guidance on recognizing signs of infection by T. indotineae.
![Image of T. indotineae infection](http://images.ctfassets.net/1ny4yoiyrqia/2JwKswi4lEvbf79bKpSth4/8dfa8d0fd6566fd17cdf2854240dba66/Ti_3-r1.jpg?w=450&h=300)
See Academy information on prevention and treatment of T. indotineae.
![Card image for Other emerging severe and resistant dermatophytes](http://images.ctfassets.net/1ny4yoiyrqia/1X6ODZYjFIWiYkOkCREF7p/c499e42b4f4332f999efca75712b6bea/Dermatophysis-02-r1.jpg?w=450&h=300)
See Academy guidance on other emerging dermatophytes of concern.
Treatment pathway
Access a Suggested algorithm for refractory or chronic dermatophytosis (PDF).
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.