Evidence map›Paper›PMID 25069868›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2014

The impact of the meningococcal serogroup C conjugate vaccine in Canada between 2002 and 2012.

Manish Sadarangani, David W Scheifele, Scott A Halperin, Wendy Vaudry, Nicole Le Saux, Raymond Tsang, Julie A Bettinger, investigators of the Canadian Immunization Monitoring Program, ACTive (IMPACT)

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In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
4.6field-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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
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  7. Active surveillance of acute paediatric hospitalisations demonstrates the impact of vaccination programmes and informs vaccine policy in Canada and Australia.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2020
    Article
  8. Epidemiology and Control of Meningococcal Disease in Canada: A Long, Complex, and Unfinished Story.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2019
    Review
  9. Review
  10. Article
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  12. Impact and effectiveness of meningococcal vaccines: a review.Revista panamericana de salud publica = Pan American journal of public health · 2017
    Article
  13. Article
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  15. Editorial commentary: fifteen years of protection by meningococcal C conjugate vaccines: lessons from disease surveillance.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2014
    Article
  16. Parents' and adolescents' willingness to be vaccinated against serogroup B meningococcal disease during a mass vaccination in Saguenay-Lac-St-Jean (Quebec).The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 2 countries.

Manish SadaranganiVaccine Evaluation Center, Division of Infectious and Immunological Diseases, Department of Pediatrics, BC Children's Hospital and the University of British Columbia, Vancouver, Canada Department of Paediatrics, University of Oxford, United Kingdom.
David W ScheifeleVaccine Evaluation Center, Division of Infectious and Immunological Diseases, Department of Pediatrics, BC Children's Hospital and the University of British Columbia, Vancouver, Canada.
Scott A HalperinCanadian Center for Vaccinology, IWK Health Centre and Dalhousie University, Halifax, Nova Scotia.
Wendy VaudryDivision of Infectious Diseases, Department of Pediatrics, Stollery Children's Hospital and University of Alberta, Edmonton.
Nicole Le SauxDivision of Infectious Disease, Children's Hospital of Eastern Ontario, Ottawa.
Raymond TsangVaccine Preventable Bacterial Diseases, National Microbiology Laboratory, Winnipeg, Manitoba, Canada.
Julie A BettingerVaccine Evaluation Center, Division of Infectious and Immunological Diseases, Department of Pediatrics, BC Children's Hospital and the University of British Columbia, Vancouver, Canada.
investigators of the Canadian Immunization Monitoring Program, ACTive (IMPACT)
BC Children's Hospital · CAChildren's Hospital of Eastern Ontario · CADalhousie University · CAStollery Children's Hospital · CAUniversity of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBefore 2001, the incidence of invasive meningococcal disease (IMD) in Canada was 1.0 per 100 000 per year, with 40% of cases caused by serogroup C organisms. During 2001-2005 all provinces introduced the meningococcal serogroup C conjugate vaccine (MCCV) into their routine infant immunization schedule.

methodsActive, prospective, population-based surveillance of IMD in children and adults was conducted by the Canadian Immunization Monitoring Program, ACTive (IMPACT) during 2002-2012. Inclusion criteria were admission to hospital and identification of Neisseria meningitidis from a sterile site. Incidence was estimated using population census data from Statistics Canada.

resultsPrior to MCCV introduction, serogroup C disease incidence was 0.07-0.25 per 100 000 per year depending on the province. Following vaccine introduction, serogroup C disease decreased to <0.05 per 100 000 per year, with a reduction of 14% per year (P = .0014). A decrease occurred in all provinces, despite differing schedules being implemented. The largest decrease of 83% (from 0.27 to 0.05 per 100 000 per year) occurred in the 15-24 year age group (P = .0100) who were not vaccinated in all provinces. There was no impact on the incidence of nonserogroup C disease over the same period (P = .9811).

conclusionsMCCV dramatically reduced the incidence of serogroup C IMD in Canada through both direct and indirect effects. The observation that disease incidence decreased with different schedules suggests that the doses at 12 months (common to all provinces) and adolescence (7 of 8 provinces studied) were critical in achieving disease control.

Indexed as

AdultCanadaHumansIncidenceMeningococcal InfectionsMeningococcal VaccinesNeisseria meningitidis, Serogroup CProspective StudiesMeningococcal Vaccinesserogroup C meningococcal conjugate vaccineconjugate vaccinesherd immunitymeningitismeningococcal diseaseserogroup C

Identifiers

PMID25069868
OpenAlexW2142373856

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.