We describe 7 cases of extensive tinea corporis since 2018 in a hospital in Paris, France, after failure to cure with terbinafine. Molecular analysis indicated Trichophyton mentagrophytes internal transcribed spacer type VIII (T. indotineae). This strain, which has mutations in the squalene epoxidase gene, is spreading on the Indian subcontinent.
Keywords: France; Trichophyton indotineae; Trichophyton mentagrophytes complex; antifungal drug resistance; antimicrobial resistance; fungi; human-to-human transmission; skin infections; squalene epoxidase; terbinafine.