ArticleBMC microbiology2025
Genomic analysis of a clinical Mycolicibacterium houstonense isolate reveals dual escalation in adaptability and virulence.
Article in BMC microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Pediatric Submandibular Lymphadenitis Caused byInfection and drug resistance · 2026Article
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Authors and funding
8 authors.
Funding
Abstract
backgroundMycolicibacterium houstonense is prone to being misidentified as other mycobacteria, particularly M. fortuitum. This study characterized the genome of a clinical M. houstonense isolate and delineated its phylogenetic relationship with M. fortuitum to provide a basis for accurate diagnosis and management of infections caused by this species.
methodsGenome sequencing was used to determine the taxonomic status, virulence profile, and resistance traits of the clinical isolate, while comparative genomics was employed to delineate its evolutionary relationship with M. fortuitum.
resultsThe clinical isolate was definitively identified as M. houstonense. Genomic analysis revealed a unique repertoire of virulence and resistance genes. Its genome harbors 590 virulence genes, many of which encode T7SS effectors. In addition to resistance genes commonly found in nontuberculous mycobacteria, it also carries M. tuberculosis-related resistance determinants, enhancing its resilience to disinfectants, antiseptics, and antimicrobials commonly used in clinical settings. Phylogenomic analysis indicates that M. houstonense and M. fortuitum drive reciprocal divergence, reinforcing their environmental adaptability.
conclusionGenomic analysis is poised to serve as a robust tool for the identification of M. houstonense. The clinical isolate in our study suggests a potential dual escalation of M. houstonense in adaptability and virulence, underscoring the need for stricter clinical monitoring and environmental surveillance.
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