Evidence map›Paper›PMID 34017007›Full record

ArticleNPJ vaccines2021

Attenuated dengue viruses are genetically more diverse than their respective wild-type parents.

Amanda Makha Bifani, Milly M Choy, Hwee Cheng Tan, Eng Eong Ooi

Abstract read
In one paragraph

Article in NPJ vaccines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Intra-Host Diversity of Dengue Virus in Mosquito Vectors.Frontiers in cellular and infection microbiology · 2022
    Review
  11. 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

4 authors.

Amanda Makha BifaniProgramme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore.
Milly M ChoyProgramme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore.
Hwee Cheng TanProgramme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore.
Eng Eong OoiProgramme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore. engeong.ooi@duke-nus.edu.sg.ORCID http://orcid.org/0000-0002-0520-1544

Funding

MOH | National Medical Research Council (NMRC) MOH-000135-00
6 · The paper itself

Abstract

Dengue poses a significant burden of individual health, health systems and the economy in dengue endemic regions. As such, dengue vaccine development has been an active area of research. Previous studies selected attenuated vaccine candidates based on plaque size. However, these candidates led to mixed safety outcome in clinical trials, suggesting it is insufficiently informative as an indicator of dengue virus (DENV) attenuation. In this study, we examined the genome diversity of wild-type DENVs and their attenuated derivatives developed by Mahidol University and tested in phase 1 clinical trials. We found that the attenuated DENVs, in particular the strain under clinical development by Takeda Vaccines, DENV2 PDK53, showed significantly higher genome diversity than its wild-type parent, DENV2 16681. The determinant of genomic diversity was intrinsic to the PDK53 genome as infectious clone of PDK53 showed greater genomic diversity after a single in vitro passage compared to 16681 infectious clone. Similar trends were observed with attenuated DENV1 and DENV4, both of which were shown to be attenuated clinically, but not DENV3 that was not adequately attenuated clinically. Taken together, evidence presented here suggests that genome diversity could be developed into a marker of DENV attenuation.

Identifiers

PMID34017007
PMCPMC8138019

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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.