Evidence map›Paper›PMID 21349363›Full record

ArticleVaccine2011

Population diversity in batches of the varicella Oka vaccine.

R K Kanda, M L Quinlivan, A A Gershon, R A Nichols, J Breuer

Open access · greenAbstract read
In one paragraph

Article in Vaccine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

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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

5 authors at 3 institutions in 3 countries.

R K KandaDepartment of Infection, The Windeyer Institute, University College London, 46 Cleveland Street, London WC1T 4JF, England, UK. r.kanda@imperial.ac.uk
M L Quinlivan
A A Gershon
R A Nichols
J Breuer
University College London · GBColumbia University Irving Medical Center · USQueen Mary University of London · GB

Funding

VZV in the enteric nervous system: pathogenesis and consequencesR01DK093094 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MICHAEL D GERSHON, Anne A. Gershon · 2011 to 2026
$5.9M
Medical Research Council G0700814Medical Research Council G0900950NIDDK NIH HHS R01 DK093094
6 · The paper itself

Abstract

The Oka vaccine is a live attenuated vaccine for the prevention of varicella. Although the vaccine differs from the progenitor virus by over 40 mutations, only three of these are fixed, the rest being a mixture of the wildtype and the vaccine allele. To examine the extent of this variability between two of the three commercially available vaccine preparations, we analysed the vaccine/wildtype allele frequencies present at fifteen vaccine loci in five preparations each from two different manufacturers of the vOka vaccine. Our results suggest that differences in manufacturing processes between the two companies have resulted in significant variation in the frequencies of the vaccine/wildtype alleles in their vaccines. Yet despite these differences, the allele frequencies in the vaccines from the two companies are strongly correlated. We discuss the significance of these findings and the role of evolutionary processes that influence the production of this live attenuated vaccine.

Indexed as

Genetic VariationChickenpox VaccineGene FrequencyHerpesvirus 3, HumanHumansPolymerase Chain ReactionRNA, ViralSequence Analysis, DNAChickenpox VaccineRNA, Viral

Identifiers

PMID21349363
PMCPMC5381798
OpenAlexW1994848506

What OpenQuestion holds

Textmetadata
LicenceTDM
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.