We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Which methods are appropriate for the detection of <em>Staphylococcus argenteus</em> and is it worthwhile to distinguish <em>S. argenteus</em> from <em>S. aureus</em>?
- Authors
Kaden, René; Engstrand, Lars; Rautelin, Hilpi; Johansson, Cecilia
- Abstract
Purpose: To further analyze a clinical isolate originally identified as methicillin-resistant Staphylococcus aureus (MRSA) using whole-genome sequencing and comparative genomics.Materials and methods: Classical diagnostic methods such as cultivation, biochemical tests, and PCR were supplemented with whole-genome sequencing and comparative genomics, to identify the isolate.Results: The isolate was phenotypically similar to MRSA. However, the presence of the nuc gene could not be confirmed using PCR, while it was positive for the mecA gene. Whole-genome sequencing correctly identified the isolate as Staphylococcus argenteus. The isolate possessed several resistance genes, such as mecA, blaZ (β-lactam antibiotics) and dfrG (trimethoprim). The nuc gene differed from that of MRSA. Six phylogenetic distinct clusters were identified by average nucleotide identity (ANI) analysis of all available S. argenteus whole-genome sequences. Our isolate, RK308, clustered with those isolated in Europe and Asia.Conclusion: Due to the invasive potential, the multi-drug resistance and the similarity to MRSA, S. argenteus should be included in the MRSA screening. Due to the divergent genome compared to MRSA, new PCR approaches have to be developed to avoid an unnoticed spreading of S. argenteus.
- Subjects
STAPHYLOCOCCUS aureus; METHICILLIN-resistant staphylococcus aureus; COMPARATIVE genomics; STAPHYLOCOCCUS aureus infections; PHENOTYPES
- Publication
Infection & Drug Resistance, 2018, Vol 11, p2335
- ISSN
1178-6973
- Publication type
Article
- DOI
10.2147/IDR.S179390