Evidence map›Paper›PMID 21693638›Full record

ArticlemBio2011

High levels of recombination among Streptococcus pneumoniae isolates from the Gambia.

E S Donkor, C J Bishop, K A Gould, J Hinds, M Antonio, B Wren, W P Hanage

Erratum issuedAbstract read
In one paragraph

Article in mBio, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
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

24 citing papers in PubMed.

  1. Streptococcus pneumoniae and other bacterial nasopharyngeal colonization seven years post-introduction of 13-valent pneumococcal conjugate vaccine in South African children.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2023
    Article
  2. AMicrobial genomics · 2022
    Article
  3. Microbial genomics · 2021
    Article
  4. Strategies to Attenuate the Competence Regulon inPeptide science (Hoboken, N.J.) · 2021
    Article
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4 · The record

Corrections and comments

  • Erratum issued
    Gould, K A [added]; Hinds, J [added]
5 · Who and what money

Authors and funding

7 authors.

E S DonkorDepartment of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom.
C J Bishop
K A Gould
J Hinds
M Antonio
B Wren
W P Hanage

Funding

Medical Research Council MC_U190074190Medical Research Council MC_U190081991Wellcome Trust 086547
6 · The paper itself

Abstract

We carried out multilocus sequence typing (MLST) on 148 pneumococcal carriage isolates collected from children <24 months old in the Upper River Division, the Gambia. MLST revealed a diverse population. Seventy-six different sequence types (STs) were found, the most common of which were 802 and 919, associated with 23F and 6A serotypes, respectively. Comparison with the MLST database showed that only 11 of the STs found in the present sample had been reported outside Africa. Six STs showed evidence of capsular switching (172, 802, 847, 1730, 1736, and 1737). Serotype switches were confirmed by microarrays that detected capsule genes. Of isolates analyzed by using microarrays, 40/69 (58%) harbored the tetM resistance determinant. A statistical genetic analysis to detect recombination found that 49/144 (34%) isolates showed significant (P<0.05) evidence of admixture, which is greater than that observed in similar samples from the United Kingdom (5%) and Finland (2%). We hypothesize that large amounts of admixture could reflect the high prevalence of multiple carriage in this region, leading to more opportunities for homologous recombination between strains. This could have consequences for the population response to conjugate vaccination.

Indexed as

Genetic VariationRecombination, GeneticBacterial CapsulesBacterial ProteinsCarrier StateCluster AnalysisDNA, BacterialGambiaGenotypeHumansInfantInfant, NewbornMicroarray AnalysisMultilocus Sequence TypingPneumococcal InfectionsSerotypingBacterial ProteinsDNA, BacterialTet M resistance protein, Bacteria

Identifiers

PMID21693638
PMCPMC3119534

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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.