Minnesota Sees Outbreak of Sexually Transmitted Fungal Infection

Health officials grapple with rising cases of Trichophyton mentagrophytes type VII (TMVII) ringworm in the Twin Cities area.

Published on Feb. 21, 2026

Got story updates? Submit your updates here. ›

Health officials in Minnesota are responding to an outbreak of a sexually transmitted fungal infection known as Trichophyton mentagrophytes type VII (TMVII). The infection, a type of ringworm, has resulted in 14 confirmed and 27 suspected cases in the Twin Cities metropolitan area since July 2025. TMVII can spread through skin-to-skin contact, including sexual activity, as well as through contact with contaminated surfaces.

Why it matters

The Minnesota outbreak represents the largest known cluster of TMVII cases in the U.S., highlighting the potential for this emerging infection to spread more widely. TMVII is not currently a reportable disease, making it difficult to track its prevalence across the country. The outbreak underscores the need for enhanced surveillance and public health measures to address this growing public health concern.

The details

TMVII is a fungus that causes a distinctive round, red, and irritated rash on various parts of the body. Unlike typical fungal skin infections, TMVII can be transmitted through sexual contact and by touching contaminated surfaces. The first confirmed U.S. case was identified in New York in 2024, linked to a man with multiple male sexual partners who had recently traveled in Europe. Since then, cases have been reported in several other U.S. cities, indicating a broader national trend.

  • The first confirmed case in Minnesota emerged in July 2025.
  • As of February 2026, there are 14 confirmed and 27 suspected cases in the Twin Cities metropolitan area.

The players

Minnesota Department of Health (MDH)

The state health department that has established an enhanced surveillance system to monitor the TMVII outbreak.

Got photos? Submit your photos here. ›

What they’re saying

“We must remain vigilant and work to contain the spread of this emerging infection.”

— Dr. Sarah Wilkins, Minnesota State Epidemiologist

What’s next

The Minnesota Department of Health is working to improve surveillance and reporting of TMVII cases across the state to better understand the scope of the outbreak and implement effective control measures.

The takeaway

The TMVII outbreak in Minnesota highlights the need for increased awareness and proactive public health measures to address the growing threat of sexually transmitted fungal infections. Improved surveillance, rapid response, and public education will be crucial in containing the spread of this emerging public health concern.