Genomically linked cluster of Dermatophilus congolensis infections suggests sexual transmission in MSM, indicating a public health concern.
We report a genomically linked cluster of 9 Dermatophilus congolensis cutaneous infections diagnosed within 2 months among men who have sex with men in Lyon and Paris, France, 2025-2026. Genomic similarity and shared sexual exposures strongly suggest interhuman sexual transmission of this zoonotic bacterium.
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Degreze et al. (2026) studied this question.
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