Evidence map›Paper›PMID 21123536›Full record

ArticleJournal of clinical microbiology2011

Persistence, replacement, and rapid clonal expansion of meningococcal carriage isolates in a 2008 university student cohort.

Fadil A Bidmos, Keith R Neal, Neil J Oldfield, David P J Turner, Dlawer A A Ala'Aldeen, Christopher D Bayliss

Open access · greenAbstract 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 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
5.8field-weighted citation impact, top 4% 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

40 citing papers in PubMed, 72 citations in OpenAlex.

  1. Trial
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  5. Variable disruption of epithelial monolayers byMicrobiology (Reading, England) · 2023
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  11. Meningococcal Carriage in 'Men Having Sex With Men' With Pharyngeal Gonorrhoea.Frontiers in cellular and infection microbiology · 2021
    Article
  12. Pharyngeal carriage rates of Neisseria meningitidis in health care professionals at a tertiary university pediatric hospital.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020
    Article
  13. Article
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  16. Suspected cluster ofEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2019
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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 2 institutions in 1 country.

Fadil A BidmosDepartment of Genetics, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom.
Keith R Neal
Neil J Oldfield
David P J Turner
Dlawer A A Ala'Aldeen
Christopher D Bayliss
University of Nottingham · GBUniversity of Leicester · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A study of meningococcal carriage dynamics was performed with a cohort of 190 first-year students recruited from six residential halls at Nottingham University, United Kingdom. Pharyngeal swabs were obtained on four occasions between November 2008 and May 2009. Direct plating and culture on selective media were succeeded by identification and characterization of meningococci using PCR-based methodologies. Three serogroup Y clones and one serogroup 29E clone were highly prevalent in particular residential halls in November 2008, which is indicative of rapid clonal expansion since the start of the academic year. Persistent carriage of the same meningococcal strain for at least 5 to 6 months was observed in 45% of carriers, with infrequent evidence of antigenic variation in PorA. Sequential carriage of heterologous meningococcal strains occurred in 36% of carriers and involved strains with different capsules and antigenic variants of PorA and FetA in 83% of the cases. These clonal replacement strains also exhibited frequent differences in the presence and antigenic structures of two other surface proteins, NadA and HmbR. This study highlights the low level of antigenic variation associated with persistent carriage but, conversely, the importance of alterations in the repertoire of antigenic variants for sequential carriage of meningococcal strains. Rapid clonal expansion of potentially pathogenic strains in residential halls has implications for the implementation of public health interventions in university populations.

Indexed as

Bacterial Typing TechniquesAntigens, BacterialCarrier StateCohort StudiesDNA, BacterialGenotypeHumansMeningococcal InfectionsNeisseria meningitidisPharynxPolymerase Chain ReactionPrevalenceSerotypingStudentsUnited KingdomUniversitiesAntigens, BacterialDNA, Bacterial

Identifiers

PMID21123536
PMCPMC3043478
OpenAlexW2153012088

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.