Evidence map›Paper›PMID 34152965›Full record

ArticleEmerging infectious diseases2021

Whole-Genome Analysis of Streptococcus pneumoniae Serotype 4 Causing Outbreak of Invasive Pneumococcal Disease, Alberta, Canada.

James D Kellner, Leah J Ricketson, Walter H B Demczuk, Irene Martin, Gregory J Tyrrell, Otto G Vanderkooi, Michael R Mulvey

Open access · diamondAbstract read
In one paragraph

Article in Emerging infectious diseases, 2021. 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
2.9field-weighted citation impact, top 9% 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, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Digital PCR linkage analysis resolvesMicrobiology spectrum · 2026
    Article
  6. Article
  7. Invasive pneumococcal disease surveillance in Canada, 2023.Canada communicable disease report = Releve des maladies transmissibles au Canada · 2026
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Invasive pneumococcal disease surveillance in Canada, 2021-2022.Canada communicable disease report = Releve des maladies transmissibles au Canada · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Article
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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

7 authors at 2 institutions in 1 country.

James D Kellner
Leah J Ricketson
Walter H B Demczuk
Irene Martin
Gregory J Tyrrell
Otto G Vanderkooi
Michael R Mulvey
University of Calgary · CAUniversity of Alberta · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

After the introduction of pneumococcal conjugate vaccines for children, invasive pneumococcal disease caused by Streptococcus pneumoniae serotype 4 declined in all ages in Alberta, Canada, but it has reemerged and spread in adults in Calgary, primarily among persons who are experiencing homelessness or who use illicit drugs. We conducted clinical and molecular analyses to examine the cases and isolates. Whole-genome sequencing analysis indicated relatively high genetic variability of serotype 4 isolates. Phylogenetic analysis identified 1 emergent sequence type (ST) 244 lineage primarily associated within Alberta and nationally distributed clades ST205 and ST695. Isolates from 6 subclades of the ST244 lineage clustered regionally, temporally, and by homeless status. In multivariable logistic regression, factors associated with serotype 4 invasive pneumococcal disease were being male, being <65 years of age, experiencing homelessness, having a diagnosis of pneumonia or empyema, or using illicit drugs.

Indexed as

Pneumococcal InfectionsStreptococcus pneumoniaeAdultAlbertaChildDisease OutbreaksHumansMalePhylogenyPneumococcal VaccinesSerogroupSerotypingPneumococcal Vaccinesantimicrobial resistancebacteriaepidemicshomelessnessinvasive pneumococcal diseaseoutbreakspneumococcal infectionspneumococcal pneumoniarespiratory infectionsstreptococciStreptococcus pneumoniaeStreptococcus pneumoniae serotype 4vaccineswhole genome sequencing

Identifiers

PMID34152965
PMCPMC8237880
OpenAlexW3175676175

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.