A New Fungal Infection is Spreading – Here’s What You Need to Know
A new fungal infection, known as TMVII (Trichophyton mentagrophytes genotype VII), is gaining attention among healthcare professionals, particularly in Washington state. While not life-threatening, this infection presents unique challenges due to its resistance to common treatments and its transmission patterns.
What is TMVII and How is it Different?
TMVII isn’t a new type of sexually transmitted infection (STI), but rather a sexually transmissible infection. Dr. Matthew Golden, with Public Health – Seattle & King County, explains that it’s spread through skin-to-skin contact. Unlike typical ringworm, TMVII frequently manifests as anal and genital involvement. It can also appear in other areas, and cases of infection via oral contact have been reported.
The infection resembles ringworm – a raised, red, circular rash – but doesn’t respond to over-the-counter topical creams. Effective treatment requires a prescription for oral medication, such as terbinafine, often taken for six to twelve weeks.
Who is at Risk?
Outbreaks of TMVII have primarily been observed among gay, bisexual, and other men who have sex with men (GBMSM). Confirmed cases were first identified in New York City in 2024, followed by an outbreak of 30 cases in Minnesota in 2025. As of April 2026, Washington state has identified two confirmed cases in King County, though health officials suspect there are likely more.
The Challenges of Diagnosis
Diagnosing TMVII can be difficult. The only location in Washington state currently equipped to perform the necessary lab test is the University of Washington. Access to testing depends on whether a patient’s healthcare provider has a working relationship with the UW lab.
Symptoms to Watch For
Individuals should be aware of the following symptoms:
- Intense itching
- Scaly skin texture
- Rash concentrated in the groin or genital area
What Can Be Done?
If you suspect you have TMVII, it’s important to consult a medical provider and specifically inquire about testing for the infection. King County’s Sexual Health Clinic offers services for those concerned about potential infection. Preventative measures include being mindful of skin-to-skin contact and seeking prompt medical attention for any unusual rashes.
FAQ
Q: Is TMVII an STI?
A: No, it’s a sexually transmissible infection, meaning it’s spread through skin-to-skin contact, not necessarily sexual activity.
Q: Can over-the-counter creams treat TMVII?
A: No, TMVII is resistant to most topical treatments and requires a prescription for oral medication.
Q: Where can I get tested for TMVII in Washington state?
A: Currently, the University of Washington is the only lab in the state offering testing.
Q: Is TMVII widespread?
A: While cases have been identified in several states, including Washington, the full extent of the outbreak is still being determined.
Q: Where can I discover more information?
A: You can find more information at King County’s Public Health website.
Have you or someone you know been affected by TMVII? Share your experiences and questions in the comments below. For more information on sexual health and infectious diseases, explore our other articles here. Subscribe to our newsletter for the latest updates and expert advice.
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