Doctors in New York City have identified the first known U.S. cases of sexually transmitted ringworm, caused by the fungus Trichophyton mentagrophytes (TMVII).
This fungal infection, which resembles a round, itchy rash, is typically transmitted through skin-to-skin contact and was previously rare in this context.
Five cases were reported between April and July 2024, all involving gay or bisexual men in their 30s with multiple partners.
Symptoms appeared on the face, buttocks, or genitals, and were successfully treated with antifungal medications.
The origin of TMVII’s presence in the U.S. is uncertain, but one patient had traveled in Europe.
The researchers emphasize the need for awareness of the potential for TMVII to spread sexually and the importance of accurate diagnosis, as it can be mistaken for other skin conditions.
Effective treatment may take up to three months, and patients should avoid skin contact and sharing personal items while infected.
They are also advised against using steroid creams, which can exacerbate the infection.
