Minnesota health officials warn of TMVII outbreak — a sexually transmitted ringworm spreading in Twin Cities
Twin Cities, Minnesota (High Desert News Online) – Minnesota faces the nation’s largest outbreak of Trichophyton mentagrophytes genotype VII (TMVII), a sexually transmitted fungal skin infection. Over 30 confirmed or suspected Twin Cities cases since July 2025 demand caution; it spreads via skin-to-skin contact and needs specific treatment.
- TMVII spreads primarily through sexual skin-to-skin contact and causes ringworm-like rashes that often require oral antifungal treatment.
- More than 30 confirmed or suspected Twin Cities cases (13 lab-confirmed, 27 suspected) prompted enhanced surveillance by state health officials.
- TMVII is not nationally reportable, creating surveillance gaps; clinicians should test, culture, and report suspected cases.
What is TMVII?
TMVII — Trichophyton mentagrophytes genotype VII — is a dermatophyte fungus related to typical causes of ringworm, athlete’s foot and jock itch. Unlike many dermatophyte infections, TMVII has been documented spreading within sexual networks, and Minnesota public-health officials describe current events as a sexually transmitted fungal outbreak.
For state guidance see the Minnesota Department of Health health advisory (Feb. 11, 2026).
Outbreak timeline and scope in Minnesota
Minnesota identified its first TMVII case in July 2025 in a Twin Cities resident with a genital rash. An MDH health advisory dated Feb. 11, 2026, reports 13 laboratory-confirmed cases and 27 suspected cases in the metro area, exceeding 30 total cases and marking the largest known U.S. cluster so far. Enhanced surveillance began after clinicians reported links between patients.
Background: the first U.S. case linked to TMVII was reported in New York in 2024; the CDC has confirmed cases in multiple cities but national comparison is limited by reporting gaps. See reporting at CBS News — Minnesota TMVII outbreak and local coverage at KSTP — Nation’s largest known outbreak in Minnesota.
Symptoms, diagnosis and treatment
TMVII typically produces round, coin-shaped red patches that are itchy or painful. Lesions may be scaly, raised or have pustule-like bumps, and often appear on genitals, perianal areas, buttocks, thighs or other trunk/limb areas. Because these rashes can mimic eczema or psoriasis, they may be misdiagnosed.
Diagnosis requires skin scrapings and fungal culture. Clinicians are advised to submit specimens and report suspected cases to public health; MDH guidance details specimen submission and reporting procedures (Minnesota Department of Health health advisory).
Treatment differs from typical topical ringworm creams: TMVII often requires oral antifungal medication for several weeks and sometimes up to 12 weeks to clear the infection. If lesions do not respond to over-the-counter topical therapy, clinicians should suspect TMVII and pursue fungal testing.
How it spreads and who is at higher risk
TMVII spreads via direct skin-to-skin contact; sexual contact is the primary route in the current outbreak. It can also spread indirectly through contaminated clothing, towels or bedding. Public health reports note higher observed risk among men who have sex with men, commercial sex workers, and people with prior sexually transmitted infections, though any person with infected skin can transmit the fungus.
Public health response and prevention advice
MDH issued an enhanced surveillance advisory on Feb. 11, 2026, to identify and contain cases after clinicians linked patients. Providers are urged to test, report suspected cases, and counsel patients to avoid exposing partners. Practical public advice includes:
- Avoid skin-to-skin sexual contact until medically cleared.
- Do not share clothing, towels or bedding; wash linens in hot water and dry on high heat.
- Clean bathing areas and surfaces to reduce environmental spores.
- Seek medical evaluation for round, itchy or painful rashes, especially in the genital, buttock or thigh areas.
See MDH guidance: Minnesota Department of Health health advisory, and media summaries at Fox News — State confirms outbreak and CBS News — Minnesota TMVII outbreak.
Surveillance limits and unanswered questions
Because TMVII is not nationally reportable, public-health officials lack a clear nationwide picture. This gap makes it hard to compare outbreaks between states and may mask ongoing transmission chains. Experts say improved reporting and clinician awareness are essential to assess spread and prevent larger clusters (analysis at CIDRAP — Minnesota health officials warn).
Implications for The High Desert, California
Economic impact: Local clinics and urgent-care centers may see increased visits if TMVII spreads beyond the Midwest; extended oral antifungal regimens and follow-up add costs. Health systems should ensure access to prescribed oral antifungals and lab testing to limit downstream expenses (MDH advisory, CBS News).
Political consequences: For a moderate-conservative audience in the High Desert, emphasize strong local public-health readiness and patient privacy. County leaders may face pressure to clarify surveillance plans and ensure clinics have guidance. Clear, practical prevention messaging is advised (CIDRAP).
Social effects and cultural relevance: Sexual transmission raises stigma risks. Stress that fungal infections are medical, not moral, issues; offer confidential testing and partner-notification protocols. The High Desert’s mix of military families, retirees and service workers means practical guidance—avoid skin-to-skin contact when symptomatic, launder items on hot cycles, seek prompt medical care—will resonate (ABC3340 — Minnesota reports largest U.S. outbreak).
Practical applications for residents and providers
Residents: If you develop a round, itchy or painful skin rash—especially in genital, buttock or thigh areas—seek medical evaluation. Avoid sexual contact and sharing towels or clothing until cleared. Wash linens/clothing in hot water and dry on high heat (MDH advisory, CBS News).
Providers: Consider TMVII for genital or thigh lesions tied to sexual contact that do not respond to topical antifungals. Collect skin scrapings, submit fungal cultures per state guidance, and report suspected cases to local health departments to support containment (MDH advisory, CIDRAP).
Reporting and follow-up
Local health departments in California should review the MDH advisory and coordinate with state public-health labs to ensure clinical laboratories can identify TMVII if cases appear. Because national reporting is limited, timely local reporting is vital to detect spread early and minimize community disruption (Minnesota Department of Health health advisory, CIDRAP — analysis).
Sources
- Minnesota Department of Health health advisory (Feb. 11, 2026)
- CBS News — Minnesota TMVII outbreak
- Fox News — State confirms outbreak, experts urge caution
- CIDRAP — Minnesota health officials warn sexually transmitted fungal infections
- KSTP — Nation’s largest known outbreak in Minnesota
- ABC3340 — Minnesota reports largest U.S. outbreak
“Early testing, patient counseling and clinician reporting are key to containing TMVII and protecting partners.”
