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Minnesota Faces Largest US Ringworm Outbreak Among MSM

2/13/2026

25 3 Full Breakdown

Summary

Story summary

Minnesota is experiencing the largest outbreak of sexually transmitted ringworm in the United States, with over 30 confirmed or suspected cases since July 2025.
The infections are primarily among men who have sex with men.
The infection is caused by Trichophyton mentagrophytes genotype VII (TMVII) and was first reported in New York City in June 2024.
Diagnosis requires advanced testing.
Treatment may take weeks or months.

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Story summary

Minnesota is experiencing the largest outbreak of sexually transmitted ringworm in the United States, with over 30 confirmed or suspected cases since July 2025.
The infections are primarily among men who have sex with men.
The infection is caused by Trichophyton mentagrophytes genotype VII (TMVII) and was first reported in New York City in June 2024.
Diagnosis requires advanced testing.
Treatment may take weeks or months.