# Mycobacterium nanjing sp. nov. Isolated from Cutaneous Infection, China **Authors:** Yidie Zou, Youming Mei, Wenyue Zhang, Ying Shi, Haiqin Jiang, Yukun Huang, Hongsheng Wang PMC · DOI: 10.3201/eid3203.252001 · 2026-03-01 ## TL;DR A new species of Mycobacterium, named Mycobacterium nanjing, was discovered in a skin infection case in China. ## Contribution The discovery and genomic characterization of a novel Mycobacterium species causing cutaneous infection. ## Key findings - A novel Mycobacterium species was isolated from a cutaneous infection in an immunocompetent individual. - Whole-genome sequencing confirmed the isolate as a new species, proposed as Mycobacterium nanjing sp. nov. ## Abstract We report a case of a cutaneous infection in an immunocompetent person in China caused by an uncharacterized Mycobacterium strain. The patient isolate was identified as a novel species by whole-genome sequencing. We propose Mycobacterium nanjing sp. nov. as the name for this new species. ## Full-text entities - **Diseases:** HIV (MESH:D015658), trauma (MESH:D014947), hepatitis B and C viruses (MESH:D006509), Cutaneous Infection (MESH:D007239), tuberculosis (MESH:D014376), Mycobacterium (MESH:D009164), hand lesions (MESH:D006232), cutaneous (MESH:D018366), syphilis (MESH:D013587), Mycobacterial infections (MESH:D009165), inflammatory (MESH:D007249), hyperplasia (MESH:D006965) - **Chemicals:** meropenem (MESH:D000077731), Lowenstein-Jensen medium (-), amikacin (MESH:D000583), amoxicillin (MESH:D000658), rifampin (MESH:D012293), roxithromycin (MESH:D015575), rifabutin (MESH:D017828), doxycycline (MESH:D004318), ciprofloxacin (MESH:D002939), clarithromycin (MESH:D017291), minocycline (MESH:D008911), tobramycin (MESH:D014031), moxifloxacin (MESH:D000077266), linezolid (MESH:D000069349), trimethoprim/sulfamethoxazole (MESH:D015662) - **Species:** Mycobacterium (genus) [taxon 1763], Mycobacterium marinum (species) [taxon 1781], Homo sapiens (human, species) [taxon 9606], Mycobacterium avium complex sp. (species) [taxon 37162], Mycobacterium intracellulare (species) [taxon 1767], Mycolicibacterium vaccae (species) [taxon 1810], Mycolicibacterium gilvum Spyr1 (strain) [taxon 278137], Mycobacterium kansasii (species) [taxon 1768] ## Figures 1 figure with captions in the complete paper: https://tomesphere.com/paper/PMC13016007/full.md --- Source: https://tomesphere.com/paper/PMC13016007