Officials Warn of Sexually Transmitted Ringworm Outbreak: What to Know
Summary
Health officials in Minnesota have reported a large outbreak of a sexually transmitted form of ringworm called Trichophyton mentagrophytes genotype VII (TMVII). This outbreak has led to more than 30 confirmed or suspected cases since July 2025. The infection spreads through direct skin contact and can cause serious rashes, prompting a public health advisory.Key Facts
- Minnesota is facing the largest known outbreak of TMVII in the U.S.
- Over 30 cases have been reported in the Twin Cities since July 2025.
- TMVII is a fungus causing tinea, known as ringworm, which results in red, itchy rashes.
- The infection spreads through direct skin contact, including sexual contact.
- TMVII was first reported in the U.S. in 2024, with cases also seen in other large cities.
- Clinicians are advised to treat suspected cases with specific antifungal medication without waiting for test results.
- Preventative measures include avoiding skin contact with infected individuals and not sharing personal items.
- The Minnesota Department of Health is working with clinicians and using enhanced surveillance to manage the outbreak.
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