Evidence map›Paper›PMID 28121981›Full record

ArticlePloS one2017

Oral Vaccination of Free-Living Badgers (Meles meles) with Bacille Calmette Guérin (BCG) Vaccine Confers Protection against Tuberculosis.

Eamonn Gormley, Deirdre Ní Bhuachalla, James O'Keeffe, Denise Murphy, Frank E Aldwell, Tara Fitzsimons, Paul Stanley, Jamie A Tratalos, Guy McGrath, Naomi Fogarty and 4 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
7.1field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 87 citations in OpenAlex.

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  10. The European Union One Health 2023 Zoonoses report.EFSA journal. European Food Safety Authority · 2024
    Article
  11. Review
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  14. The European Union One Health 2022 Zoonoses Report.EFSA journal. European Food Safety Authority · 2023
    Article
  15. Review
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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

14 authors at 2 institutions in 2 countries.

Eamonn GormleySchool of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
Deirdre Ní BhuachallaSchool of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
James O'KeeffeDept of Agriculture, Food and the Marine, Head of Wildlife Unit, Agriculture House, Dublin, Ireland.
Denise MurphySchool of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
Frank E AldwellImmune Solutions Ltd, Centre for Innovation, University of Otago, Dunedin, New Zealand.
Tara FitzsimonsSchool of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
Paul StanleySchool of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
Jamie A TratalosUCD Centre for Veterinary Epidemiology and Risk Analysis (CVERA), School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
Guy McGrathUCD Centre for Veterinary Epidemiology and Risk Analysis (CVERA), School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
Naomi FogartyCentral Veterinary Research Laboratory, Backweston, Co. Kildare, Ireland.
Kevin KennyCentral Veterinary Research Laboratory, Backweston, Co. Kildare, Ireland.
Simon J MoreUCD Centre for Veterinary Epidemiology and Risk Analysis (CVERA), School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
Locksley L McV MessamSchool of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
Leigh A L CornerSchool of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.
University College Dublin · IEUniversity of Otago · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A field trial was conducted to investigate the impact of oral vaccination of free-living badgers against natural-transmitted Mycobacterium bovis infection. For a period of three years badgers were captured over seven sweeps in three zones and assigned for oral vaccination with a lipid-encapsulated BCG vaccine (Liporale-BCG) or with placebo. Badgers enrolled in Zone A were administered placebo while all badgers enrolled in Zone C were vaccinated with BCG. Badgers enrolled in the middle area, Zone B, were randomly assigned 50:50 for treatment with vaccine or placebo. Treatment in each zone remained blinded until the end of the study period. The outcome of interest was incident cases of tuberculosis measured as time to seroconversion events using the BrockTB Stat-Pak lateral flow serology test, supplemented with post-mortem examination. Among the vaccinated badgers that seroconverted, the median time to seroconversion (413 days) was significantly longer (p = 0.04) when compared with non-vaccinated animals (230 days). Survival analysis (modelling time to seroconversion) revealed that there was a significant difference in the rate of seroconversion between vaccinated and non-vaccinated badgers in Zones A and C throughout the trial period (p = 0.015). For badgers enrolled during sweeps 1-2 the Vaccine Efficacy (VE) determined from hazard rate ratios was 36% (95% CI: -62%- 75%). For badgers enrolled in these zones during sweeps 3-6, the VE was 84% (95% CI: 29%- 97%). This indicated that VE increased with the level of vaccine coverage. Post-mortem examination of badgers at the end of the trial also revealed a significant difference in the proportion of animals presenting with M. bovis culture confirmed lesions in vaccinated Zone C (9%) compared with non-vaccinated Zone A (26%). These results demonstrate that oral BCG vaccination confers protection to badgers and could be used to reduce incident rates in tuberculosis-infected populations of badgers.

Indexed as

Animals, WildBCG VaccineMustelidaeMycobacterium bovisAdministration, OralAnimalsTuberculosisVaccinationBCG Vaccine

Identifiers

PMID28121981
PMCPMC5266210
OpenAlexW2581509119

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.