# Mycobacterium decipiens Infection in Patient Receiving Anti–TNF-α Therapy, France, 2024

## TL;DR

A patient in France with inflammatory bowel disease developed a skin infection from Mycobacterium decipiens, a new species related to tuberculosis, and was successfully treated with oral antibiotics.

## Contribution

This is the first reported case of M. decipiens infection in a patient receiving anti–TNF-α therapy.

## Key findings

- M. decipiens infection occurred in a patient on anti–TNF-α therapy for inflammatory bowel disease.
- The infection was successfully treated with an oral antimicrobial regimen.
- M. decipiens shows high genomic similarity to M. tuberculosis.

## Abstract

Mycobacterium decipiens is a newly identified species with high genomic similarity to M. tuberculosis. We report a cutaneous M. decipiens infection in a patient in France who had inflammatory bowel disease being treated with anti–tumor necrosis factor-α therapy. The infection was successfully treated with an oral antimicrobial regimen.