Evidence map›Paper›PMID 31350931›Full record

ArticlePlant biotechnology journal2020

Efficacy of a plant-produced virus-like particle vaccine in chickens challenged with Influenza A H6N2 virus.

Tanja Smith, Martha M O'Kennedy, Daniel B R Wandrag, Modupeore Adeyemi, Celia Abolnik

Open access · goldAbstract read
In one paragraph

Article in Plant biotechnology journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 56 citations in OpenAlex.

  1. Chemical reviews · 2026
    Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review
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

5 authors at 2 institutions in 1 country.

Tanja SmithDepartment of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa.ORCID 0000-0001-6111-6312
Martha M O'KennedyDepartment of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa.
Daniel B R WandragDepartment of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa.
Modupeore AdeyemiDepartment of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa.
Celia AbolnikDepartment of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa.
University of Pretoria · ZACouncil for Scientific and Industrial Research · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The efficacy, safety, speed, scalability and cost-effectiveness of producing hemagglutinin-based virus-like particle (VLP) vaccines in plants are well-established for human influenza, but untested for the massive poultry influenza vaccine market that remains dominated by traditional egg-grown oil-emulsion whole inactivated virus vaccines. For optimal efficacy, a vaccine should be closely antigenically matched to the field strain, requiring that influenza A vaccines be updated regularly. In this study, an H6 subtype VLP transiently expressed in Nicotiana benthamiana was formulated into a vaccine and evaluated for efficacy in chickens against challenge with a heterologous H6N2 virus. A single dose of the plant-produced H6 VLP vaccine elicited an immune response comparable to two doses of a commercial inactivated H6N2 vaccine, with mean hemagglutination inhibition titres of 9.3 log

Indexed as

Antibodies, ViralInfluenza A virusInfluenza VaccinesPoultry DiseasesVaccines, Virus-Like ParticleAnimalsChickensNicotianaVirus SheddingAntibodies, ViralInfluenza VaccinesVaccines, Virus-Like Particleavian influenzachickensH6N2Nicotiana benthamianaviral sheddingVLP vaccine

Identifiers

PMID31350931
PMCPMC6953208
OpenAlexW2964886779

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.