Evidence map›Paper›PMID 21307210›Full record

ArticleJournal of clinical microbiology2011

Genotypic and phenotypic characterization of methicillin-susceptible Staphylococcus aureus isolates misidentified as methicillin-resistant Staphylococcus aureus by the BD GeneOhm MRSA assay.

Paul D Stamper, Lisa Louie, Henry Wong, Andrew E Simor, Jason E Farley, Karen C Carroll

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.8field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 45 citations in OpenAlex.

  1. Review
  2. Article
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  4. Single-cell electro-phenotyping for rapid assessment ofSensors and actuators. B, Chemical · 2018
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  10. Characterization of the staphylococcal cassette chromosome mec insertion site in 108 isolates lacking the mecA gene and identified as methicillin-resistant Staphylococcus aureus by the Xpert MRSA assay.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2014
    Article
  11. Article
  12. Article
  13. Laboratory evaluation of the BD MAX MRSA assay.Journal of clinical microbiology · 2014
    Article
  14. Article
  15. Article
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  18. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

Paul D StamperDivision of Medical Microbiology, Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA. pstamper@jhmi.edu
Lisa Louie
Henry Wong
Andrew E Simor
Jason E Farley
Karen C Carroll
Johns Hopkins Medicine · USSunnybrook Health Science Centre · CAHealth Sciences Centre · CAJohns Hopkins University · US

Funding

Methicillin Resistant Staph aureus (MRSA) in CorrectionsF31NR009334 · NINR · JOHNS HOPKINS UNIVERSITY · PI FARLEY, JASON EDWARD · 2004 to 2007
$127k
NINR NIH HHS 1 F31 NR009334-01NINR NIH HHS F31 NR009334
6 · The paper itself

Abstract

Twenty-three nasal swab samples that tested positive for methicillin-resistant Staphylococcus aureus (MRSA) on initial testing by the BD GeneOhm MRSA assay (BD-MRSA PCR; BD GeneOhm, San Diego, CA) were culture positive only for methicillin-susceptible S. aureus (MSSA) from an enrichment broth. The 23 recovered isolates were confirmed as MSSA by a variety of phenotypic methods, including the BD Phoenix automated microbiology system (BD Diagnostics, Sparks, MD), oxacillin screening agar (BD Diagnostics), BBL CHROMagar MRSA (BD Diagnostics), and a PBP2' assay (Denka Seiken Co., Tokyo, Japan); susceptibilities were determined by using Mueller-Hinton agar with oxacillin. All were positive by nuc PCR, specific for S. aureus, but negative for mecA with one exception. Isolates were characterized by using multiplex PCR methodology to determine structural types and variants (SCCmec typing); additional PCRs were performed for the detection of the ccr and mec complexes, the junkyard regions as well as the Panton-Valentine leukocidin. Pulsed-field gel electrophoresis was used to determine clonality. One phenotypic MSSA isolate contained an intact SCCmec. Twelve MSSA isolates tested positive for MRSA by the BD-MRSA PCR because of amplification of the mec priming site flanking the SCC insertion point, although these isolates lacked mecA. The 10 remaining isolates were not MRSA and tested as MSSA by phenotypic and genotypic assays. In our patient population, diagnostic and surveillance testing and subsequent infection control practices may be impacted by the frequency of these excision events when using the BD-MRSA PCR for MRSA detection.

Indexed as

Methicillin ResistanceAnti-Bacterial AgentsBacterial ProteinsDNA, BacterialHumansMicrobial Sensitivity TestsMolecular Diagnostic TechniquesMutagenesis, InsertionalNasal MucosaRecombination, GeneticStaphylococcal InfectionsStaphylococcus aureusVirulence FactorsAnti-Bacterial AgentsBacterial ProteinsDNA, BacterialVirulence Factors

Identifiers

PMID21307210
PMCPMC3122879
OpenAlexW2148350859

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.