ArticlePloS one2022
Genomic characterization of Staphylococcus aureus isolates causing osteoarticular infections in otherwise healthy children.
Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 4 citations in OpenAlex.
- Analysis of clinical characteristics and risk factors for Staphylococcus aureus disseminated infection secondary to acute osteoarticular infections in children.Italian journal of pediatrics · 2025Article
- Evolution of strain diversity and virulence factor repertoire in pediatric Staphylococcus aureus isolates.PloS one · 2025Article
- Surgical management of chronic osteomyelitis: Organisms, recurrence and treatment outcome.Chinese journal of traumatology = Zhonghua chuang shang za zhi · 2023Article
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Authors and funding
16 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundPediatric osteoarticular infections are commonly caused by Staphylococcus aureus. The contribution of S. aureus genomic variability to pathogenesis of these infections is poorly described.
methodsWe prospectively enrolled 47 children over 3 1/2 years from whom S. aureus was isolated on culture-12 uninfected with skin colonization, 16 with skin abscesses, 19 with osteoarticular infections (four with septic arthritis, three with acute osteomyelitis, six with acute osteomyelitis and septic arthritis and six with chronic osteomyelitis). Isolates underwent whole genome sequencing, with assessment for 254 virulence genes and any mutations as well as creation of a phylogenetic tree. Finally, isolates were compared for their ability to form static biofilms and compared to the genetic analysis.
resultsNo sequence types predominated amongst osteoarticular infections. Only genes involved in evasion of host immune defenses were more frequently carried by isolates from osteoarticular infections than from skin colonization (p = .02). Virulence gene mutations were only noted in 14 genes (three regulating biofilm formation) when comparing isolates from subjects with osteoarticular infections and those with skin colonization. Biofilm results demonstrated large heterogeneity in the isolates' capacity to form static biofilms, with healthy control isolates producing more robust biofilm formation.
conclusionsS. aureus causing osteoarticular infections are genetically heterogeneous, and more frequently harbor genes involved in immune evasion than less invasive isolates. However, virulence gene carriage overall is similar with infrequent mutations, suggesting that pathogenesis of S. aureus osteoarticular infections may be primarily regulated at transcriptional and/or translational levels.
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