Evidence map›Paper›PMID 22835742›Full record

ArticleVaccine2012

Heightened adaptive immune responses following vaccination with a temperature-sensitive, live-attenuated influenza virus compared to adjuvanted, whole-inactivated virus in pigs.

Crystal L Loving, Amy L Vincent, Lindomar Pena, Daniel R Perez

Abstract readComparative Study
In one paragraph

Article in Vaccine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

27 citing papers in PubMed, 45 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

4 authors at 3 institutions in 1 country.

Crystal L LovingVirus and Prion Diseases of Livestock Research Unit, National Animal Disease Center, USDA-ARS, Ames, IA, United States. crystal.loving@ars.usda.gov
Amy L Vincent
Lindomar Pena
Daniel R Perez
National Animal Disease Center · USUniversity of Maryland, College Park · USVirginia–Maryland College of Veterinary Medicine · US

Funding

Avian Influenza Vaccines for Pandemic PreparednessR21AI071014 · NIAID · UNIV OF MARYLAND, COLLEGE PARK · PI PEREZ, DANIEL R · 2006 to 2007
$401k
NIAID NIH HHS R21 AI071014PHS HHS 266200700010C
6 · The paper itself

Abstract

In the United States there are currently two influenza vaccine platforms approved for use in humans-conventional inactivated virus and live-attenuated influenza virus (LAIV). One of the major challenges for influenza A virus (IAV) vaccination is designing a platform that provides protection across strains. Pandemic H1N1 (pH1N1) IAV swept the globe in 2009 and crossed the species barrier, infecting swine in several countries. Pigs are a natural host for IAV and serve as a model for evaluating immune responses following vaccination and challenge. Recently, a temperature-sensitive (ts) LAIV was developed by introducing modifications in the polymerase genes of a swine-like triple reassortant (tr) virus and when paired with pandemic HA and NA, provided sterilizing immunity upon intratracheal challenge with virulent pH1N1 virus. The utility of a ts LAIV is expanded in this report to show vaccination of pigs induced a cell-mediated immune response characterized by an increased number of antigen-specific IFN-secreting cells and expanded T cell populations when compared to pigs vaccinated with a whole inactivated virus (WIV) vaccine. Following challenge, there was a significant increase in the percentage of proliferating lymphocytes in the LAIV group compared to the WIV group following restimulation with pH1N1 in vitro. Also, there was an increase in the percentage of CD4/CD8 double-positive memory T cells in LAIV vaccinated pigs compared to WIV vaccinated pigs. Hemagglutination inhibition and serum neutralization titers were significantly higher in the LAIV-vaccinated pigs compared to the WIV vaccinated pigs following the initial dose of vaccine. Taken together, these results indicate the ts LAIV vaccine, generated from a triple reassortant IAV, elicits greater cell-mediated and humoral immune responses in pigs.

Indexed as

Adaptive ImmunityAdjuvants, ImmunologicAnimalsAntibodies, ViralAntibody FormationHemagglutination Inhibition TestsImmunity, CellularImmunologic MemoryInfluenza A Virus, H1N1 SubtypeInfluenza VaccinesInterferon-gammaLungNeutralization TestsOrthomyxoviridae InfectionsSwineT-LymphocytesAdjuvants, ImmunologicAntibodies, ViralInfluenza VaccinesInterferon-gammaVaccines, AttenuatedVaccines, Inactivated

Identifiers

PMID22835742
PMCPMC3743435
OpenAlexW1998032364

What OpenQuestion holds

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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.