Health officials in Minnesota have identified the state as the epicenter of what is described as the largest known outbreak of Trichophyton mentagrophytes genotype VII (TMVII), a sexually transmitted fungal skin infection. This infection, known for causing severe ringworm, is the only known fungal-based sexually transmitted disease, according to the Minnesota Department of Health.
The first case of TMVII in the United States was reported in New York City in 2024, as confirmed by the Centers for Disease Control and Prevention (CDC). Minnesota documented its initial case in July 2025 when a patient sought medical assistance for a genital rash. Currently, the health department has confirmed or suspects more than 30 cases in the Twin Cities metro area, with additional scattered cases in other major U.S. cities.
Understanding TMVII and Its Symptoms
TMVII primarily affects men who have sex with men. Symptoms of this infection include ringworm lesions on various parts of the body, including the arms, buttocks, genitals, legs, and trunk. These symptoms manifest as round, coin-like rashes that are red and irritated, often accompanied by bumps or pimples on the surface. According to the Minnesota health officials, these rashes can be painful and may lead to scarring or more severe infections if left untreated.
Individuals diagnosed with TMVII are strongly encouraged to inform their sexual partners and to avoid all forms of skin-to-skin contact, including sexual interactions, until they have completed treatment. The treatment regimen can last up to three months. Health officials also advise against sharing clothing and personal items to prevent further transmission of the infection.
Public Health Recommendations
To combat the spread of TMVII, the Minnesota Department of Health is providing resources and information on their official website. They emphasize the importance of early diagnosis and treatment, encouraging anyone experiencing symptoms to seek medical attention promptly.
As this outbreak continues to unfold, health authorities remain vigilant in monitoring the situation and providing guidance to the public. The emergence of TMVII highlights the ongoing need for awareness and education regarding sexually transmitted infections, especially those that may be less familiar to the general public.
For more information about TMVII and its implications, the Minnesota Department of Health’s website serves as a key resource for both healthcare providers and the community at large.
