Evidence map›Paper›PMID 27006456›Full record

ReviewmBio2016

Nonencapsulated Streptococcus pneumoniae: Emergence and Pathogenesis.

Lance E Keller, D Ashley Robinson, Larry S McDaniel

Open access · goldAbstract readReview
In one paragraph

Review in mBio, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 104 papers.

0numbers the graph read from it
0cells of the map it votes in
104citing papers in PubMed
14.1field-weighted citation impact, top 1% 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

104 citing papers in PubMed, 148 citations in OpenAlex.

  1. Review
  2. Regulation of PBP2x Surface Localization byPathogens (Basel, Switzerland) · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Bacterial and host factors affecting acquisition ofbioRxiv : the preprint server for biology · 2026
    Article
  7. Genomic epidemiology ofFrontiers in cellular and infection microbiology · 2026
    Article
  8. Article
  9. Observational
  10. Article
  11. An abundance ofMicrobiology (Reading, England) · 2025
    Article
  12. Review
  13. Article
  14. Article
  15. AliC and AliD of nonencapsulatedFrontiers in cellular and infection microbiology · 2025
    Article
  16. Endolysins: targetingFrontiers in microbiology · 2025
    Review
  17. Biological puzzles solved by usingJournal of bacteriology · 2024
    Review
  18. Article
  19. Article
  20. Review

44 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Lance E KellerDepartment of Microbiology and Immunology, University of Mississippi Medical Center, Jackson, Mississippi, USA.
D Ashley RobinsonDepartment of Microbiology and Immunology, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Larry S McDanielDepartment of Microbiology and Immunology, University of Mississippi Medical Center, Jackson, Mississippi, USA lmcdaniel@umc.edu.ORCID http://orcid.org/0000-0002-1649-7563
University of Mississippi Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

While significant protection from pneumococcal disease has been achieved by the use of polysaccharide and polysaccharide-protein conjugate vaccines, capsule-independent protection has been limited by serotype replacement along with disease caused by nonencapsulatedStreptococcus pneumoniae(NESp). NESp strains compose approximately 3% to 19% of asymptomatic carriage isolates and harbor multiple antibiotic resistance genes. Surface proteins unique to NESp enhance colonization and virulence despite the lack of a capsule even though the capsule has been thought to be required for pneumococcal pathogenesis. Genes for pneumococcal surface proteins replace the capsular polysaccharide (cps) locus in some NESp isolates, and these proteins aid in pneumococcal colonization and otitis media (OM). NESp strains have been isolated from patients with invasive and noninvasive pneumococcal disease, but noninvasive diseases, specifically, conjunctivitis (85%) and OM (8%), are of higher prevalence. Conjunctival strains are commonly of the so-called classical NESp lineages defined by multilocus sequence types (STs) ST344 and ST448, while sporadic NESp lineages such as ST1106 are more commonly isolated from patients with other diseases. Interestingly, sporadic lineages have significantly higher rates of recombination than classical lineages. Higher rates of recombination can lead to increased acquisition of antibiotic resistance and virulence factors, increasing the risk of disease and hindering treatment. NESp strains are a significant proportion of the pneumococcal population, can cause disease, and may be increasing in prevalence in the population due to effects on the pneumococcal niche caused by pneumococcal vaccines. Current vaccines are ineffective against NESp, and further research is necessary to develop vaccines effective against both encapsulated and nonencapsulated pneumococci.

Indexed as

Bacterial CapsulesCarrier StateHumansPneumococcal InfectionsPrevalenceStreptococcus pneumoniaeVirulence FactorsVirulence Factors

Identifiers

PMID27006456
PMCPMC4807366
OpenAlexW2304052989

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.