
New TM7 fungal outbreak prompts health alert in the U.S.
A new fungal infection, Trichophyton mentagrophytes genotype VII (TM7), is spreading in the United States and causing ringworm-like rashes that can be itchy and persistent. Minnesota has reported the largest current cluster, with cases also emerging in other states. TM7 spreads via close skin-to-skin contact, including intimate contact, and most infections respond to oral antifungals such as terbinafine, though some patients may need longer or alternative treatments. Early diagnosis helps ensure proper treatment and reduce transmission; while anyone can be infected, health officials have noted higher prevalence in men who have sex with men.













