Evidence map›Paper›PMID 24336058›Full record

SynthesisThe Pediatric infectious disease journal2014

Systematic review of the indirect effect of pneumococcal conjugate vaccine dosing schedules on pneumococcal disease and colonization.

Jennifer D Loo, Laura Conklin, Katherine E Fleming-Dutra, Maria Deloria Knoll, Daniel E Park, Jennifer Kirk, David Goldblatt, Katherine L O'Brien, Cynthia G Whitney

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in The Pediatric infectious disease journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 8 pooled it
4.7field-weighted citation impact, top 5% 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

58 citing papers in PubMed, 8 syntheses or guidelines pooled it, 113 citations in OpenAlex.

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  16. Higher valency vaccines' impact on antimicrobial resistance rates inEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2025
    Article
  17. Article
  18. Article
  19. Genomic characterization ofMicrobial genomics · 2025
    Article
  20. Frontiers in public health · 2025
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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

9 authors at 5 institutions in 3 countries.

Jennifer D LooFrom the *Respiratory Diseases Branch, Division of Bacterial Diseases, National Center for Immunizations and Respiratory Diseases; †Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA; ‡International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore; §Westat Inc., Rockville, MD; and ¶Institute of Child Health, University College London, London, United Kingdom.
Laura Conklin
Katherine E Fleming-Dutra
Maria Deloria Knoll
Daniel E Park
Jennifer Kirk
David Goldblatt
Katherine L O'Brien
Cynthia G Whitney
Johns Hopkins University · USNational Center for Immunization and Respiratory Diseases · USCenters for Disease Control and Prevention · USUniversity College London · GBWestat (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo aid decision making for pneumococcal conjugate vaccine (PCV) use in infant national immunization programs, we summarized the indirect effects of PCV on clinical outcomes among nontargeted age groups.

methodsWe systematically reviewed the English literature on infant PCV dosing schedules published from 1994 to 2010 (with ad hoc addition of 2011 articles) for outcomes on children >5 years of age and adults including vaccine-type nasopharyngeal carriage (VT-NP), vaccine-type invasive pneumococcal disease (VT-IPD) and syndromic pneumonia.

resultsOf 12,980 citations reviewed, we identified 21 VT-IPD, 6 VT-NP and 9 pneumonia studies. Of these 36, 21 (58%) included 3 primary doses plus PCV or pneumococcal polysaccharide vaccine (PPV23) booster schedule (3+1 or 3+PPV23), 5 (14%) 3+0, 9 (25%) 2+1 and 1 (3%) 2+0. Most (95%) were PCV7 studies. Among observational VT-IPD studies, all schedules (2+1, 3+0 and 3+1) demonstrated reductions in incidence among young adult groups. Among syndromic pneumonia observational studies (2+1, 3+0 and 3+1), only 3+1 schedules showed significant indirect impact. Of 2 VT-NP controlled trials (3+0 and 3+1) and 3 VT-NP observational studies (2+1, 3+1 and 3+PPV23), 3+1 and 3+PPV23 schedules showed significant indirect effect. The 1 study to directly compare between schedules was a VT-NP study (2+0 vs. 2+1), which found no indirect effect on older siblings and parents of vaccinated children with either schedule.

conclusionsIndirect benefit of a 3+1 infant PCV dosing schedule has been demonstrated for VT-IPD, VT-NP and syndromic pneumonia; 2+1 and 3+0 schedules have demonstrated indirect effect only for VT-IPD. The choice of optimal infant PCV schedule is limited by data paucity on indirect effects, especially a lack of head-to-head studies and studies of PCV10 and PCV13.

Indexed as

Immunization ScheduleAdolescentAdultAgedCarrier StateChildChild, PreschoolHumansInfantMiddle AgedNasopharynxObservational Studies as TopicPneumococcal InfectionsPneumococcal VaccinesRandomized Controlled Trials as TopicVaccines, ConjugatePneumococcal VaccinesVaccines, Conjugate

Identifiers

PMID24336058
PMCPMC3940524
OpenAlexW1981257809

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.